I just found and bought this, although not a known make it is dirt cheap!
Couldn't find it in store though?
Mini Wireless Desktop
Package includes: wireless keyboard, wireless optical mouse, USB RF receiver, USB extension cable, 4 x AAA alkaline batteries and CD driver
Mini and ultra-slim profile keyboard - just 1.5cm thickness - enables you to save even more room on your desk
Innovative low structure and laser printed keys offer improved typing comfort and enhance key stability
7 powerful multimedia keys support power mode, e-mail and internet functions in just one touch
Wireless high speed transmission with 1.5m range allows more freedom of movement
Mouse with ingenious One-Click button high-speed RF transmission (125Hz)
Power-saving on/off button on the mouse
Avoid interference from other wireless devices; the R7 mouse is designed with auto-detect two channels and 255 ID
The no delays function allows the R7 mouse to immediately wake up from any level of sleeping mode
Low battery warning wheel
Ultra low power consumption resulting in the battery lasting up to three times longer than most mice
Convenient and slim USB receiver
System requirements: IBM or compatible PC; Hard Disk Driver; Windows® 98, 2000, ME, XP, 2003, X64, and a free USB port