109-key three-key zone 4 paired keyboard

Material: ABS plastic
Support system: IOS, ANDROID, WIN
Number of keys: 109 keys, three-key area
Support wireless/Bluetooth: Broadcom Bluetooth 3.0
Keyboard life (number of keystrokes): 5 million times
Response speed: 5 milliseconds
Wireless/Bluetooth transmission distance: 10 meters
Working current/voltage: 0.25 mA 3.7V
Built-in battery: No

Battery type & capacity: 2*AAA (not included)