Keychron B6 Pro Ultra-Slim Wireless Keyboard – Colour: Space Gray – Form Factor: Full Size (109 Keys) – Frame & Keycap Material: ABS – Polling Rate: 1000Hz (2.4GHz & Wired)/90Hz (Bluetooth) – Battery: 800mAh Rechargeable li-polymer – Wireless Working Time: Up to 8 Months – Charging Time: Around 2.5 Hours – Connection: 2.4GHz/BT/Type-C Wired – Compatible with: macOS/Windows/Linux – B6P-K1