Generic Smart Bluetooth Wireless Mouse for PC Android - Grey Connects directly to Bluetooth-enabled notebooks or PC without the need for a receiver. Works with Bluetooth-enabled computers running Windows XP, VISTA, 7 and 8 Mouse Size: 105 x 65 x 41mm, Battery: 1x AA size battery (NOT INCLUDED) TruWave technology for precise, smart cursor control over many surface types. 3 DPI Selection:1600/1200/1000