Keychron K10 Bluetooth Keyboard White Backlit 104 Keys Gateron Mechanical Wireless Keyboard(Blue Switch) Specification Number of Keys: 104 keys (*Num Lock works with Windows OS only) Switch: Gateron, Red / Blue/ Brown - The ~ key supports 3pin switch only Number of Multimedia Keys: 12 Main Body Material: ABS Keycap Material: ABS Layout: ANSICONNECTIVITY AND POWER Backlit: White System: Windows/Android/Mac/iOS Battery: 4000mAh Rechargeable li-polymer battery BT Working Time (Backlit off): Up to 240 hours (Lab test result may vary by actual use) BT Working Time (Single LED): Up to 68 hours (Lab test result may vary by actual use) Charging Time: Around 3 hours Connection: Bluetooth and Type-C cable Bluetooth version: 5.1 Bluetooth Device Name: Keychron K10 Compatible System: macOS/Windows PHYSICAL UNIT Dimension (Plastic frame version): 435 x 120 x 38 mm Weight: About 895g / 1.97lbs Height incl. keycap (front) 32mm Height incl. keycap (rear) 41mm Operating Environment: -10 to 50