Rapoo 3300p. Device interface: USB, Movement detection technology: Optical, Purpose: Office. Wireless receiver interface: USB, Receiver type: nano. Power source: Batteries, Battery life (max): 4392 h. Mac operating systems supported: Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion. Mouse dimensions (WxDxH): 48.1 x 78.4 x 26.7 mm