Features:
Key life of up to 3 million times
Design for Mobile Phones Tablet Laptop with bluetooth function
Easy access to what you want.
Built-in rechargeable lithium battery
High performance rechargeable lithium battery， easy for charging， 2-hour charging， up to 90hours using.
No wire，no receiver，you can get up to 10 meters transmission distance with bluetooth technology.

Specifications:
Standard micro interface
Operating distance up to 10 meters
Modulation system: GFSK
Operation voltage: 3.0-4.2V
Operating current: <2.5mA
Standby current: <0.3mA
Standby time: >200 days
Charging time: <2 hours
Uninterrupted working time: >90 hours
Size: approx. 19.8*2.3cm

Package Included:
1x wireless bluetooth keyboard
1x USB charging cable