Features: Dual mode connection, with BT 5.1 connection and 2.4 G wireless connection. Rechargeable mouse, built-in rechargeable lithium battery, long endurance time, no need to worry about power shortage. Three-speed sensitivity adjustment, 800/1200/1600 DPI suitable for different use. Colorful luminous effect, 7 color synchronized breathing light, highlights the atmosphere of using. Intelligent power saving, auto-sleep energy saving model. Silence Key, optional click silence, left and right click are both silent, noiseless. Specification: Material: ABS Key life: 5 million times Wireless distance: 10m Work: Photoelectricity Battery capacity:500mAh(Chargeable) Charging cable length: 25cm Project Type: Ergonomics Optical Mouse Operation Mode:Opto-electronic Rated voltage / current: 3.7V / 8mA Power Type:Rechargeable Type:2.4Ghz Wireless+Bluetooth 5.1 Buttons: 2 Buttons and 1 Round (Middle Mutton) and Mouse dpi System requirements: Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 / 10/Vista Mac OS or latest.(Apple mobile devices are not supported) Item size:11.3*5.8*2.6cm / 4.45*2.28*1.02 in(L * W * H) Item weight: 71g /2.5oz Package size:12.7*7.7*3.2cm / 5*3.03*1.26 in(L * W * H) Package weight:99g /3.49oz Packing list: 1 * Dual Mouse 1 * USB Receiver 1 * USB Charging Cable 1 * User Manual