Feature:
The product is made of high quality aluminum alloy and ABS material, which is beautiful and hand feels is good. Support for multiple devices or systems, for windows, Android. In addition to being used as a numeric keypad, it can also be used as a HUB. The two expansion interfaces are USB3.0, which transmits 5Gbps per second and is compatible with a variety of devices. 34-key design, a good helper for number input processing. Support theoretically the maximum transmission distance of 10 meters, more convenient and flexible to use. Type-c to type-c public data line USB3.1Gen2 does not recognize the direction of anti-intrusion, omni-directional accessibility to quickly read data.
Specification:
Model: BT181Pro
Color: Black; Silver(Optional)
Material: aluminum alloy + ABS
Support system: for Windows, OS, Android
Number of keys: 34 keys
HUB interface: 2*USB3.0
USB transfer speed: 5Gbps
Keyboard life (keystrokes): 5 million times
Button response speed: 5 milliseconds
Wireless / BT transmission distance: 10 meters
Working voltage and current: 3.7V/2mA
Built-in lithium battery: yes
Battery type: polymer lithium battery 302323 (110mAh)
Charging time: 2 hours
Use time: 50 hours
Size: 14.7 * 11.5 * 1.3cm / 5.8 * 4.5 * 0.5in

Package list:
1 * Keyboard
1 * Type-c cable
1 * User manual