Logitech LX5 Cordless Optical Mouse Tilt wheel plus zoom lets you scroll horizontally or vertically and instantly zoom in and out Sleek body has flared sides for extra comfort and support for use with either hand New sensor technology uses less power than ordinary optical mice & delivers ultra-smooth cursor control Enjoy up to 8 months battery life with automatic standby or use the convenient On/ Off button for even longer life Compatible with PC and Mac