{"product_id":"keychron-j4-qmk-teclado-mecanico-wireless-copia","title":"Keychron J4 QMK Teclado Mecânico Wireless","description":"\u003c!-- ═══════════════════════════════════════\n     KEYCHRON J4 — Página de Produto Gamer\n     Fundo preto, acento verde-limão gamer\n     ═══════════════════════════════════════ --\u003e\n\n\u003cstyle\u003e\n  .j2-sec { background:#000; color:#fff; font-family:Arial,sans-serif; padding:64px 20px; }\n  .j2-container { max-width:1200px; margin:0 auto; }\n  .j2-eyebrow { font-size:11px; letter-spacing:.18em; font-weight:800; color:#4A90E1; text-transform:uppercase; margin-bottom:10px; }\n  .j2-title { font-size:clamp(26px,5vw,48px); font-weight:900; line-height:1.05; text-transform:uppercase; margin-bottom:18px; }\n  .j2-body { font-size:15px; color:#bdbdbd; line-height:1.75; max-width:680px; }\n  .j2-flex { display:flex; gap:48px; align-items:center; flex-wrap:wrap; }\n  .j2-flex \u003e * { flex:1; min-width:280px; }\n  .j2-img { border-radius:14px; overflow:hidden; background:#111; }\n  .j2-img img { width:100%; display:block; }\n  .j2-img video { width:100%; display:block; }\n  .j2-badge { display:inline-block; background:#4A90E1; color:#000; font-size:10px; font-weight:900; letter-spacing:.12em; padding:4px 12px; border-radius:99px; text-transform:uppercase; margin-bottom:16px; }\n  \/* Slider hero *\/\n  .j2-slider { position:relative; overflow:hidden; background:#111; aspect-ratio:16\/9; }\n  .j2-track { display:flex; height:100%; transition:transform .5s cubic-bezier(.4,0,.2,1); }\n  .j2-slide { flex:0 0 100%; height:100%; }\n  .j2-slide img { width:100%; height:100%; object-fit:cover; display:block; }\n  .j2-btn { position:absolute; top:50%; transform:translateY(-50%); background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.2); color:#ccc; width:40px; height:40px; display:flex; align-items:center; justify-content:center; cursor:pointer; font-size:18px; z-index:10; border-radius:4px; transition:background .2s; }\n  .j2-btn:hover { background:rgba(255,255,255,.22); }\n  .j2-btn--prev { left:14px; }\n  .j2-btn--next { right:14px; }\n  .j2-dots { position:absolute; bottom:14px; left:50%; transform:translateX(-50%); display:flex; gap:7px; z-index:10; }\n  .j2-dot { width:7px; height:7px; border-radius:50%; background:rgba(255,255,255,.3); cursor:pointer; transition:background .2s; }\n  .j2-dot.on { background:#4A90E1; }\n  \/* Tabs *\/\n  .j2-tabs { display:flex; gap:0; border-bottom:1px solid #222; overflow-x:auto; }\n  .j2-tab { padding:14px 24px; font-size:13px; font-weight:700; background:none; border:none; border-bottom:2px solid transparent; color:#666; cursor:pointer; white-space:nowrap; transition:.2s; font-family:Arial,sans-serif; }\n  .j2-tab.on { color:#4A90E1; border-bottom-color:#4A90E1; }\n  .j2-tab-img { display:none; }\n  .j2-tab-img.on { display:block; }\n  \/* Keycap grid *\/\n  .j2-keycap-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-top:28px; }\n  .j2-keycap-card { border-radius:12px; overflow:hidden; position:relative; }\n  .j2-keycap-card img { width:100%; display:block; }\n  .j2-keycap-label { position:absolute; bottom:12px; left:14px; font-size:12px; font-weight:700; color:#fff; background:rgba(0,0,0,.6); padding:4px 10px; border-radius:99px; backdrop-filter:blur(4px); }\n  \/* Specs *\/\n  .j2-spec-block { border-bottom:1px solid #1e1e1e; }\n  .j2-spec-trigger { display:flex; align-items:center; justify-content:space-between; padding:22px 0; cursor:pointer; user-select:none; }\n  .j2-spec-trigger span:first-child { font-size:18px; font-weight:700; }\n  .j2-spec-icon { font-size:20px; color:#4A90E1; transition:transform .25s; }\n  .j2-spec-body { display:block; padding-bottom:28px; }\n  .j2-spec-grid { display:grid; grid-template-columns:1fr 1fr; border-top:1px solid #1e1e1e; }\n  .j2-spec-cell { padding:13px 14px 13px 0; border-bottom:1px solid #1e1e1e; }\n  .j2-spec-cell.r { padding:13px 0 13px 14px; border-left:1px solid #1e1e1e; }\n  .j2-spec-cell.last { border-bottom:none; }\n  .j2-spec-cell strong { display:block; font-size:13px; color:#fff; margin-bottom:3px; }\n  .j2-spec-cell span { font-size:13px; color:#777; line-height:1.6; }\n  \/* LKP pill *\/\n  .j2-lkp-pill { display:inline-flex; align-items:center; gap:8px; background:#0d0d0d; border:1px solid #4A90E1; border-radius:999px; padding:8px 18px; font-size:12px; font-weight:700; color:#4A90E1; letter-spacing:.08em; text-transform:uppercase; margin-top:20px; }\n  \/* Receiver highlight *\/\n  .j2-highlight-box { background:#000d1a; border:1px solid #002a4a; border-radius:14px; padding:28px 24px; margin-top:28px; }\n  .j2-highlight-box strong { color:#4A90E1; }\n  \/* Launcher btn *\/\n  .j2-launcher-btn { display:inline-flex; align-items:center; gap:10px; background:#4A90E1; color:#000; font-weight:800; padding:14px 32px; border-radius:999px; text-decoration:none; font-family:Arial,sans-serif; font-size:14px; transition:opacity .2s; margin-top:24px; }\n  .j2-launcher-btn:hover { opacity:.85; }\n  .j2-note { font-size:11px; color:#555; margin-top:10px; }\n  @media(max-width:768px) {\n    .j2-flex { flex-direction:column; gap:28px; }\n    .j2-keycap-grid { grid-template-columns:1fr; }\n    .j2-spec-grid { grid-template-columns:1fr; }\n    .j2-spec-cell.r { padding:13px 0 13px 0; border-left:none; border-top:1px solid #1e1e1e; }\n  }\n\u003c\/style\u003e\n\n\u003c!-- ══ HERO ══ --\u003e\n\u003csection style=\"background:#000;padding:0;\"\u003e\n  \u003cdiv class=\"j2-slider\" id=\"j2s\"\u003e\n    \u003cdiv class=\"j2-track\" id=\"j2t\"\u003e\n      \u003cdiv class=\"j2-slide\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Keychron_J4_QMK_Wireless_Mechanical_Keyboard-1.jpg?v=1756438883\" alt=\"Keychron J4\" loading=\"eager\"\u003e\u003c\/div\u003e\n      \u003cdiv class=\"j2-slide\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Keychron_J4_QMK_Wireless_Mechanical_Keyboard-6.jpg?v=1756438946\" alt=\"Keychron J4\" loading=\"lazy\"\u003e\u003c\/div\u003e\n      \u003cdiv class=\"j2-slide\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Keychron_J4_QMK_Wireless_Mechanical_Keyboard-3.jpg?v=1756438941\" alt=\"Keychron J4\" loading=\"lazy\"\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cbutton class=\"j2-btn j2-btn--prev\" onclick=\"j2slide(-1)\"\u003e‹\u003c\/button\u003e\n    \u003cbutton class=\"j2-btn j2-btn--next\" onclick=\"j2slide(1)\"\u003e›\u003c\/button\u003e\n    \u003cdiv class=\"j2-dots\" id=\"j2dots\"\u003e\n      \u003cdiv class=\"j2-dot on\" onclick=\"j2go(0)\"\u003e\u003c\/div\u003e\n      \u003cdiv class=\"j2-dot\" onclick=\"j2go(1)\"\u003e\u003c\/div\u003e\n      \u003cdiv class=\"j2-dot\" onclick=\"j2go(2)\"\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Hero text --\u003e\n  \u003cdiv style=\"background:#000;padding:40px 20px 56px;\"\u003e\n    \u003cdiv class=\"j2-container\"\u003e\n      \u003cdiv class=\"j2-badge\"\u003eKeychron J Series\u003c\/div\u003e\n      \u003ch1 style=\"font-size:clamp(40px,9vw,84px);font-weight:900;line-height:.95;letter-spacing:-.02em;text-transform:uppercase;color:#fff;margin:0 0 20px;\"\u003eKEYCHRON\u003cbr\u003e\u003cspan style=\"color:#4A90E1;\"\u003eJ4\u003c\/span\u003e\n\u003c\/h1\u003e\n      \u003cp style=\"font-size:clamp(14px,2.2vw,16px);color:#bdbdbd;line-height:1.75;max-width:740px;margin:0;\"\u003e\n        O \u003cstrong style=\"color:#fff;\"\u003eJ4\u003c\/strong\u003e é um teclado mecânico sem fio com layout TKL (80%), com suporte a \u003cstrong style=\"color:#4A90E1;\"\u003e2.4 GHz, Bluetooth e conexão com fio\u003c\/strong\u003e. Configurável via \u003cstrong style=\"color:#fff;\"\u003eQMK e Keychron Launcher\u003c\/strong\u003e, ele oferece possibilidades infinitas de personalização para jogos e produtividade.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ CARACTERÍSTICAS ══ --\u003e\n\u003csection class=\"j2-sec\" style=\"padding-top:0;padding-bottom:0;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Keychron-J4-Features.jpg?v=1756439012\" alt=\"J4 Features\" style=\"width:100%;display:block;\"\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ 2.4 GHz \u0026 BLUETOOTH ══ --\u003e\n\u003csection class=\"j2-sec\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-flex\"\u003e\n      \u003cdiv\u003e\n        \u003cdiv class=\"j2-eyebrow\"\u003ePrecisão\u003c\/div\u003e\n        \u003ch2 class=\"j2-title\"\u003e2.4 GHz \u0026amp;\u003cbr\u003eBluetooth\u003c\/h2\u003e\n        \u003cp class=\"j2-body\"\u003eAlcance performance máxima nos jogos com a conexão sem fio \u003cstrong style=\"color:#fff;\"\u003e2.4 GHz\u003c\/strong\u003e e polling rate de \u003cstrong style=\"color:#4A90E1;\"\u003e1000 Hz\u003c\/strong\u003e. Para multitarefa, conecte-se via \u003cstrong style=\"color:#fff;\"\u003eBluetooth 5.2\u003c\/strong\u003e a até \u003cstrong style=\"color:#fff;\"\u003e3 dispositivos\u003c\/strong\u003e simultaneamente.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"j2-img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Keychron_J4_QMK_Wireless_Mechanical_Keyboard-2.jpg?v=1756439049\" alt=\"2.4 GHz \u0026amp; Bluetooth\" loading=\"lazy\"\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ QMK \u0026 LAUNCHER ══ --\u003e\n\u003csection class=\"j2-sec\" style=\"background:#050505;\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-eyebrow\"\u003eLauncher Web App\u003c\/div\u003e\n    \u003ch2 class=\"j2-title\"\u003ePrograme com QMK\u003cbr\u003e\u0026amp; Keychron Launcher\u003c\/h2\u003e\n    \u003cp class=\"j2-body\"\u003eO firmware open-source \u003cstrong style=\"color:#fff;\"\u003eQMK\u003c\/strong\u003e oferece possibilidades ilimitadas para remapeamento de teclas, macros, atalhos e muito mais. Com o \u003cstrong style=\"color:#4A90E1;\"\u003eKeychron Launcher\u003c\/strong\u003e, personalize cada tecla pelo navegador — sem instalar nada.\u003c\/p\u003e\n\n    \u003cdiv class=\"j2-img\" style=\"margin-top:32px;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Keychron_J4_QMK_Wireless_Mechanical_Keyboard.png?v=1756459942\" alt=\"Keychron Launcher\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"text-align:center;margin-top:32px;\"\u003e\n      \u003ca href=\"https:\/\/launcher.keychron.com\/#\/keymap\" target=\"_blank\" class=\"j2-launcher-btn\"\u003e\n        ⚡ Acessar o Keychron Launcher\n      \u003c\/a\u003e\n      \u003cp class=\"j2-note\"\u003e* Use Chrome, Edge ou Opera — conecte o teclado via cabo para usar o Launcher.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ ACOUSTIC FOAM ESTRUTURAL ══ --\u003e\n\u003csection class=\"j2-sec\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-flex\"\u003e\n      \u003cdiv class=\"j2-img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Structure_of_Keychron_J4_Wireless_Mechanical_Keyboard.jpg?v=1756459776\" alt=\"Acoustic Foam Structure\" loading=\"lazy\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cdiv class=\"j2-eyebrow\"\u003eExperiência de Digitação\u003c\/div\u003e\n        \u003ch2 class=\"j2-title\"\u003eEspuma Acústica\u003cbr\u003eSignificativamente\u003cbr\u003eAprimorada\u003c\/h2\u003e\n        \u003cp class=\"j2-body\"\u003eO J4 conta com espuma acústica avançada \u003cstrong style=\"color:#fff;\"\u003eIXPE\u003c\/strong\u003e para maior conforto nos keystrokes, combinada com \u003cstrong style=\"color:#4A90E1;\"\u003eEPDM resiliente\u003c\/strong\u003e para suporte superior dos switches. A placa de aço garante feedback responsivo e som silencioso, enquanto o peso adicional aumenta a estabilidade.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ AN EPIC CORE ══ --\u003e\n\u003csection class=\"j2-sec\" style=\"background:#050505;\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-flex\"\u003e\n      \u003cdiv class=\"j2-img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Keychron_J4_QMK_Wireless_Mechanical_Keyboard-7.jpg?v=1756439174\" alt=\"MCU ARM\" loading=\"lazy\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cdiv class=\"j2-eyebrow\"\u003eNúcleo ARM Potente\u003c\/div\u003e\n        \u003ch2 class=\"j2-title\"\u003eUm Núcleo Épico\u003cbr\u003eDentro do Teclado\u003c\/h2\u003e\n        \u003cp class=\"j2-body\"\u003eMCU de arquitetura ARM \u003cstrong style=\"color:#4A90E1;\"\u003eWB32F3G71RCT6\u003c\/strong\u003e com \u003cstrong style=\"color:#fff;\"\u003e256 KB de Flash\u003c\/strong\u003e. Polling rate de \u003cstrong style=\"color:#4A90E1;\"\u003e1000 Hz\u003c\/strong\u003e nos modos 2.4 GHz e com fio — latência imperceptível mesmo em jogos competitivos.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ HOT-SWAPPABLE ══ --\u003e\n\u003csection class=\"j2-sec\" style=\"background:#050505;\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-flex\"\u003e\n      \u003cdiv\u003e\n        \u003cdiv class=\"j2-eyebrow\"\u003eCustomização\u003c\/div\u003e\n        \u003ch2 class=\"j2-title\"\u003eHot-Swappable\u003cbr\u003e\u003cspan style=\"color:#4A90E1;font-size:.75em;\"\u003e(Opcional)\u003c\/span\u003e\n\u003c\/h2\u003e\n        \u003cp class=\"j2-body\"\u003eTroque qualquer switch sem solda em segundos. O J2 é compatível com praticamente todos os switches MX de \u003cstrong style=\"color:#fff;\"\u003e3 e 5 pinos\u003c\/strong\u003e do mercado — Cherry, Gateron, Kailh, Panda e mais. Total liberdade para personalizar sua experiência de digitação.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"j2-img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Hot-swappable_feature_of_the_Keychron_J4_Wireless_Mechanical_Keyboard.jpg?v=1756439279\" alt=\"Hot-Swappable\" loading=\"lazy\"\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ KEYCHRON SUPER SWITCH ══ --\u003e\n\u003csection class=\"j2-sec\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-eyebrow\"\u003eSwitch Exclusivo\u003c\/div\u003e\n    \u003ch2 class=\"j2-title\"\u003eKeychron\u003cbr\u003eSuper Switch\u003c\/h2\u003e\n    \u003cp class=\"j2-body\" style=\"margin-bottom:32px;\"\u003eNosso switch exclusivo adota um novo molde de precisão incomparável. Cada switch é testado com padrão pro-grade — \u003cstrong style=\"color:#4A90E1;\"\u003e50 milhões de cliques\u003c\/strong\u003e de vida útil. A nova estrutura de transmissão de luz garante backlight mais consistente e brilhante.\u003c\/p\u003e\n    \u003cdiv class=\"j2-img\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/image_20.png?v=1753771427\" alt=\"Keychron Super Switch\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ KEYCAPS ══ --\u003e\n\u003csection class=\"j2-sec\" style=\"background:#050505;\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-eyebrow\"\u003eKeycaps\u003c\/div\u003e\n    \u003ch2 class=\"j2-title\"\u003eDouble-shot\u003cbr\u003ePBT Keycaps\u003c\/h2\u003e\n    \u003cp class=\"j2-body\"\u003eExcelente resistência a oleosidade e legends que não desbotam. O J2 oferece dois perfis de keycap para atender diferentes preferências.\u003c\/p\u003e\n    \u003cdiv class=\"j2-keycap-grid\"\u003e\n      \u003cdiv class=\"j2-keycap-card\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Cherry_Profile_Shine-Through_Keycaps_of_Keychron_J4_Wireless_Mechanical_Keyboard.jpg?v=1756439316\u0026amp;width=1440\" alt=\"Cherry Profile\" loading=\"lazy\"\u003e\n        \u003cdiv class=\"j2-keycap-label\"\u003eCherry Profile (shine-through)\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"j2-keycap-card\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/MDA_Profile_Keycaps_of_Keychron_J4_Wireless_Mechanical_Keyboard.jpg?v=1756439312\u0026amp;width=1440\" alt=\"MDA Profile\" loading=\"lazy\"\u003e\n        \u003cdiv class=\"j2-keycap-label\"\u003eMDA Profile (não shine-through)\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ RGB ══ --\u003e\n\u003csection class=\"j2-sec\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-eyebrow\"\u003eBacklight\u003c\/div\u003e\n    \u003ch2 class=\"j2-title\"\u003eRGB Dinâmico\u003c\/h2\u003e\n    \u003cp class=\"j2-body\" style=\"margin-bottom:32px;\"\u003eMais de \u003cstrong style=\"color:#4A90E1;\"\u003e22 tipos de efeitos RGB\u003c\/strong\u003e (mais opção de luz branca estática). Controle fino de matiz, saturação, brilho e velocidade do efeito com facilidade.\u003c\/p\u003e\n    \u003cdiv class=\"j2-img\"\u003e\n      \u003cvideo src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/a525b9deee1a484f82a8a0c40ecf05b9.mp4\" autoplay muted loop playsinline style=\"width:100%;display:block;border-radius:14px;\"\u003e\u003c\/video\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ ERGONÔMICO ══ --\u003e\n\u003csection class=\"j2-sec\" style=\"background:#050505;\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-flex\"\u003e\n      \u003cdiv class=\"j2-img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Ergonomic_support_for_the_Keychron_J4_Wireless_Mechanical_Keyboard.jpg?v=1756439484\" alt=\"Ergonomic Support\" loading=\"lazy\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cdiv class=\"j2-eyebrow\"\u003eConforto\u003c\/div\u003e\n        \u003ch2 class=\"j2-title\"\u003eSuporte\u003cbr\u003eErgonômico\u003c\/h2\u003e\n        \u003cp class=\"j2-body\"\u003eDois ângulos de digitação ajustáveis — \u003cstrong style=\"color:#4A90E1;\"\u003e4.5° e 9.6°\u003c\/strong\u003e — combinados com perfis de keycap curvados para suporte ergonômico duradouro ao pulso em longas sessões de jogo ou trabalho.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ IN THE BOX ══ --\u003e\n\u003csection class=\"j2-sec\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-eyebrow\"\u003eGuia\u003c\/div\u003e\n    \u003ch2 class=\"j2-title\"\u003eO Que Vem\u003cbr\u003ena Caixa?\u003c\/h2\u003e\n    \u003cdiv class=\"j2-img\" style=\"margin-top:28px;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0059\/0630\/1017\/files\/Package_list_of_the_Keychron_J4_Wireless_Mechanical_Keyboard.jpg?v=1756439509\" alt=\"In the Box\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003c!-- ══ ESPECIFICAÇÕES ══ --\u003e\n\u003csection class=\"j2-sec\" style=\"background:#050505;\"\u003e\n  \u003cdiv class=\"j2-container\"\u003e\n    \u003cdiv class=\"j2-eyebrow\"\u003ePrecisão\u003c\/div\u003e\n    \u003ch2 class=\"j2-title\" style=\"margin-bottom:40px;\"\u003eEspecificações\u003c\/h2\u003e\n\n    \u003c!-- Bloco 1: Produto --\u003e\n    \u003cdiv class=\"j2-spec-block\"\u003e\n      \u003cdiv class=\"j2-spec-trigger\" onclick=\"j2spec('s1')\"\u003e\n        \u003cspan\u003eInformações do Produto\u003c\/span\u003e\n        \u003cspan class=\"j2-spec-icon\" id=\"j2si1\"\u003e∧\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"j2-spec-body\" id=\"j2sb1\"\u003e\n        \u003cdiv class=\"j2-spec-grid\"\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eNúmero de Teclas\u003c\/strong\u003e\u003cspan\u003e87 (80%)\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003eSwitch\u003c\/strong\u003e\u003cspan\u003eMecânico (North-facing)\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eTeclas Multimídia\u003c\/strong\u003e\u003cspan\u003e12\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003eMaterial do Frame\u003c\/strong\u003e\u003cspan\u003eABS\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eMaterial do Keycap\u003c\/strong\u003e\u003cspan\u003eDouble-shot PBT\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003ePerfil do Keycap\u003c\/strong\u003e\u003cspan\u003eCherry Profile \/ MDA Profile\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eLayout\u003c\/strong\u003e\u003cspan\u003eANSI\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003eAmbiente Operacional\u003c\/strong\u003e\u003cspan\u003e-10 a 50°C\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Bloco 2: Conectividade e Energia --\u003e\n    \u003cdiv class=\"j2-spec-block\"\u003e\n      \u003cdiv class=\"j2-spec-trigger\" onclick=\"j2spec('s2')\"\u003e\n        \u003cspan\u003eConectividade e Energia\u003c\/span\u003e\n        \u003cspan class=\"j2-spec-icon\" id=\"j2si2\"\u003e∧\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"j2-spec-body\" id=\"j2sb2\"\u003e\n        \u003cdiv class=\"j2-spec-grid\"\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eConectividade\u003c\/strong\u003e\u003cspan\u003e2.4 GHz \/ Bluetooth 5.2 \/ Type-C\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003ePolling Rate\u003c\/strong\u003e\u003cspan\u003e1000 Hz (2.4 GHz e wired)\u003cbr\u003e125 Hz (Bluetooth)\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eN-Key Rollover\u003c\/strong\u003e\u003cspan\u003eSim (wireless e wired)\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003eBateria\u003c\/strong\u003e\u003cspan\u003e3750 mAh Li-polímero\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eAutonomia (sem backlight)\u003c\/strong\u003e\u003cspan\u003e~288 horas\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003eAutonomia (RGB)\u003c\/strong\u003e\u003cspan\u003e~156 horas\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eBacklight\u003c\/strong\u003e\u003cspan\u003e22+ tipos de RGB + branco estático\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003eNome Bluetooth\u003c\/strong\u003e\u003cspan\u003eKeychron J4\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell last\"\u003e\n\u003cstrong\u003eSistemas Compatíveis\u003c\/strong\u003e\u003cspan\u003eWindows · macOS · Linux\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r last\"\u003e\n\u003cstrong\u003eBluetooth\u003c\/strong\u003e\u003cspan\u003e5.2\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Bloco 3: Físico --\u003e\n    \u003cdiv class=\"j2-spec-block\"\u003e\n      \u003cdiv class=\"j2-spec-trigger\" onclick=\"j2spec('s3')\"\u003e\n        \u003cspan\u003eDimensões Físicas\u003c\/span\u003e\n        \u003cspan class=\"j2-spec-icon\" id=\"j2si3\"\u003e∧\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"j2-spec-body\" id=\"j2sb3\"\u003e\n        \u003cdiv class=\"j2-spec-grid\"\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eDimensões\u003c\/strong\u003e\u003cspan\u003e365.72 × 137.71 mm\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003ePeso\u003c\/strong\u003e\u003cspan\u003e870 g \/ 1.92 lbs\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eAltura Frontal (com keycap)\u003c\/strong\u003e\u003cspan\u003e28.18 mm\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003eAltura Traseira (com keycap)\u003c\/strong\u003e\u003cspan\u003e37.81 mm\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell\"\u003e\n\u003cstrong\u003eÂngulo de Digitação\u003c\/strong\u003e\u003cspan\u003e4.5° \/ 9.6°\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"j2-spec-cell r\"\u003e\n\u003cstrong\u003eMCU\u003c\/strong\u003e\u003cspan\u003eWB32F3G71RCT6 (256 KB Flash)\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript\u003e\n  \/* ── Hero slider ── *\/\n  let j2cur=0, j2tot=3;\n  function j2slide(d){ j2cur=(j2cur+d+j2tot)%j2tot; j2upd(); }\n  function j2go(i){ j2cur=i; j2upd(); }\n  function j2upd(){\n    document.getElementById('j2t').style.transform=`translateX(-${j2cur*100}%)`;\n    document.querySelectorAll('.j2-dot').forEach((d,i)=\u003ed.classList.toggle('on',i===j2cur));\n  }\n  setInterval(()=\u003ej2slide(1),5000);\n\n  \/* ── Specs collapse ── *\/\n  function j2spec(id){\n    const body=document.getElementById('j2sb'+id.slice(1));\n    const icon=document.getElementById('j2si'+id.slice(1));\n    const open=body.style.display!=='none';\n    body.style.display=open?'none':'block';\n    icon.style.transform=open?'rotate(180deg)':'rotate(0deg)';\n  }\n\u003c\/script\u003e\n","brand":"Keychron Brasil","offers":[{"title":"Black \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Red","offer_id":47309933740210,"sku":"KJ4-H1","price":889.0,"currency_code":"BRL","in_stock":false},{"title":"Black \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Brown","offer_id":47309933772978,"sku":"KJ4-H3","price":889.0,"currency_code":"BRL","in_stock":false},{"title":"Black \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Banana","offer_id":47309933805746,"sku":"KJ4-H4","price":889.0,"currency_code":"BRL","in_stock":true},{"title":"White \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Red","offer_id":47309933838514,"sku":"KJ4-Q1","price":889.0,"currency_code":"BRL","in_stock":false},{"title":"White \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Brown","offer_id":47309933871282,"sku":"KJ4-Q3","price":889.0,"currency_code":"BRL","in_stock":false},{"title":"White \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Banana","offer_id":47309933904050,"sku":"KJ4-Q4","price":889.0,"currency_code":"BRL","in_stock":false},{"title":"Dark Blue \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Red","offer_id":47309933936818,"sku":"KJ4-H1Z","price":889.0,"currency_code":"BRL","in_stock":false},{"title":"Dark Blue \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Brown","offer_id":47309933969586,"sku":"KJ4-H3Z","price":889.0,"currency_code":"BRL","in_stock":false},{"title":"Dark Blue \/ RGB Backlight (Hot-Swappable) \/ Keychron Super Banana","offer_id":47309934002354,"sku":"KJ4-H4Z","price":889.0,"currency_code":"BRL","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/7815\/1346\/files\/imgi_2_KeychronJ4QMKWirelessCustomMechanicalKeyboardRGBBacklightBlackKeychronSuperRed.jpg?v=1776366742","url":"https:\/\/keychronbrasil.com.br\/products\/keychron-j4-qmk-teclado-mecanico-wireless-copia","provider":"Keychron Brasil","version":"1.0","type":"link"}