Perixx PERIMICE-710B, 2.4GHz wireless mouse with high quality 1000 dpi and 1600 adjustable - Nano Receiver - 2 AAA batteries included Energizer - Black (Accessory)
Handy mouse, and good value for money. The USB socket for connection to the computer is very small which is handy as it does not exceed too much, and it puts under the mouse when not in use.