PACKAGING HAS SOME SHELF WEAR. BATTERY NOT INCLUDED.

Dual Mode: Bluetooth 4.0 + 2.4G USB wireless 
Connectivity: connects 2 devices simultaneously, 1 click to switch in between
Power Efficient: auto sleeps to preserve power, requires 1 AA battery
Quiet Design: noise reduced clicks, concentrate on your work without noise

Please contact me with any questions or concerns. Thank you!

BIN K2