Compact optical wireless mouse for precise cursor control. Ultra-small USB receiver suitable for permanent use with notebooks or PCs. 2.4 GHz radio technology for reliable, interference-free and fast signal transmission with a range of up to 8 m. Suitable for both left- and right-handed users. Connection: USB. Color: black. Number of buttons: 3 buttons. Sensor: optical. Resolution: 1000 dpi. Dimensions: 6.0 x 3.1 x 10.5 cm (WxHxD). Power source: 2x AAA batteries.