There is another thread for the M510 which is a step level down from this
model and this is cheaper to boot. This one is the "Couch Mouse" which
essentially works anywhere, and this specific BLUE one is down from 49.99.
Link to Mouse HERE.
Link: http://www.amazon.com/gp/product/B004HIN7SI/ref=as_li_ss_tl?ie=
