A4Tech G3-300NS Black Wireless Model：G3-300NS Name: Energy-saving Wireless Mouse Type: Wireless Connection: 2.4G Hz Ergonomic Design: Symmetric Sensor: Optical Resolution: 1200 DPI Report Rate: 125Hz Buttons No.: 3 Receiver: Nano USB Receiver Power Source: 1AA Alkaline Battery Net Weight:76 g (w/ battery)

Link - A4Tech G3-300NS Black Wireless