Great price since a Trust wireless mouse is a tenner and to be frank, they aren't a patch on these. Cant find it online anywhere cheaper (£22 is closest). Displayed at this price in my local store but apparently not actual price until tomorrow. They had a good 10 in stock!
Blurb: Enjoy smooth optical performance from the #1 best-selling mouse, now with High Definition technology. Work easily on the go, then simply snap in the receiver to automatically turn off the mouse, saving hassle and battery life
See Microsoft link for further detailshttp://www.microsoft.com/hardware/mouseandkeyboard/ProductDetails.aspx?pid=070&active_tab=overview