1) Advanced 2.4 GHz wireless technology, without caring about the signals delay or loss

2) USB2.0 interface, USB mini receiver, automatic to connect

3) Automatic frequency-hopping technology, strong anti-interference, high sensitivity

4) The effective range up to 15 meters

5) Automatic reconnection

6) USB charging

7) Multimedia shortcut keys

8) Plug and play, not have to install any software

9) Fully support for Windows / Mac / Linux and other operating systems

10) Voltage: 3.4-5.5V

11) Working current: 8-12mA

12) Size: 200 x 64 x 30mm

* Conditions of the LED indicator:

1) When pressing any key on the keyboard and the LED slowly twinkles by 4Hz/s, it means unsuccessful connection. If the LED is on normally, it means successful connection.

2) If the LED twinkles fast by 16 Hz/s without pressing any key, it indicates a low power. It means the Battery needed to be replaced