The KMW-340 lets you enjoy free control without a cable. It features an ultra-compact dongle that can be conveniently stored in the mouse or left connected to your PC's USB port. This plug and paly mouse also features an on/off switch that helps extend battery life. With its ergonomic design and textured grip sides, this is the ideal mouse for people on the go.
 
 
Specifications
Type: 3D 6 button optical wireless mouse
Technology: Advanced optical sensor
DPI resolution: 1000/1200/1600 dpi (adjustable)
RF distance: 19.6ft (open space 33ft)
RF technical: 2.4GHz
USB report rate: 125 times/sec
Battery type: Two AAA batteries (included)
Requirements: Windows Family & Mac OS & Available USB port