Keys: 19 keys
Interface: USB interface receiver, effective distance 10 meters
Battery: Built - in rechargeable battery, advanced technology, automatic sleep
Key life: more than 10 million times
Product Input: 3.3V
Support systems: for Android, Microsoft, Apple
size:155*88*20 mm
Material:ABS + metal
colour:black
Package Contents:
1 * Number Keyboard
1 * ReceiverOnly the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.