Logitech 910-002225 M185 Wireless Mouse - 2.4 GHz, USB Nano Receiver, Plug-and-Play, Optical Sensor, On and Off Switch, Ambidextrous Design, Swift Gray at TigerDirect.com
Logitech M185 Wireless Mouse, 2.4GHz with USB Mini Receiver, 12-Month Battery Life, 1000 DPI Optical Tracking, Ambidextrous, Compatible with PC, Mac, Laptop - Blue : Amazon.co.uk: Computers & Accessories