TeckNet 2600DPI Bluetooth Wireless Mouse, 24 Months Battery Life with Battery Indicator, 2600/2000/1600/1200/800DPI Connects directly to Bluetooth-enabled notebooks laptop or PC without the need for a receiver. 24 Months Battery Life, with battery indicator light TruWave technology for precise, smart cursor control over many surface types. 5 DPI Selection:2600/2000/1600/1200/800 Works with Bluetooth-enabled computers running Windows XP, VISTA, 7, 8 and 10 Battery: 2 x AAA size battery (NOT INCLUDED). Box Contains: 1 x Wireless Bluetooth mouse, 1 x User Manual, 1 x Warranty Card