Fantech W191S GO: Dual Mode Bluetooth & Wireless Mouse, Silent Click, Can connect to 2 devices simultaneously

Dual Mode Connectivity: BT & 2.4GHZ Wireless Mouse 1600 DPI / 4 Buttons Adjustable DPI Precision Wireless Distance: Up to 10 Meter Purely Silent Design, No Distraction Compact & Portable Super Power Saver Senser Dimensions: 10×6.1×3.4cm 2 AA Battery Included in the Package