Wireless Keyboard K1/Black K1X-A1 Keychron

Design and Construction

• Ultra-slim ergonomic profile: Compact dimensions of 350 x 130 x 40 mm (front height 19.77 mm, rear height 25.16 mm) and light weight of ~730 g, ABS structure + aluminium frame for portability and stability, keycaps shine-through ABS LSA (Low Profile Spherical Angle) profile for excellent light transmission and comfortable feel.

• Advanced acoustic foam: IXPE, latex and EPDM layers for quiet, muffled sound, north-facing switches for compatibility with aftermarket keycaps.

Switches and Performance

• Keychron Low Profile Red linear: Lightweight strength (40-45 g), 1.8 mm pre-travel, 3.1 mm total travel for fast, bump-free typing, full N-Key Rollover (NKRO) and 1000 Hz wired / 90 Hz wireless polling for precision multitasking.

Connectivity and Autonomy

• Versatile dual-mode: Bluetooth 5.2 (up to 3 simultaneous devices) + wired USB-C, Windows/macOS/Linux/Android/iOS compatible with seamless switching via Fn and 32-bit ARM Cortex-M4 MCU (256 KB Flash) for macros/QMK web app mapping.

• Long battery life: 2000 mAh Li-Po rechargeable for up to 160 hours (backlight off) or 105 hours (low), adjustable angles 3.37°/4.2°/6.7° for ergonomics.

Lighting and Multimedia

• White backlight: 22 effects with 4 adjustable brightness levels, 12 dedicated multimedia keys and low-profile design for long-lasting comfort without fatigue.