Go easy as first post. Don't think its been posted before. Recently got one of these and it works really well on laptops running XP (not Vista). Says it should work on Macs too. Take AAA batteries and at £7.57 delivered its a real bargain.
Extra Value Black/Silver Mini Wireless Optical Mouse - USB Dongle can be stored inside the mouse. 800 dpi
* Wireless Optical Technology
* Receiver Stores Neatly Inside
* Compact Design, ideal for Laptop Users
* Automatically Powers Off when the Wireless Receiver is stored.
* This Mouse with Low-Battery Indicator