Features: 2.4G+BT5.1 dual-mode connection, up to 15m wireless transmission distance, stable connection, strong anti-interference ability, easy to switch according to your needs. 3 adjustable DPI(800-1200-1600DPI), easy to switch, accurate positioning, to meet your daily office and entertainment needs. One click then back to the desktop, to effectively prevent your privacy from peeping. Silent button design, no need to worry about disturbing others. Slim and lightweight, easy to carry and use. Ergonomic design, the mouse curve fits your hand, comfortable to use, not easy to fatigue. Built-in 500mAh rechargeable lithium battery, low power consumption, long endurance time. Specification: Type: Dual-mode wireless mouse Model: M103 Color: Black/Grey/Silver(optional) Material: ABS Connection mode: 2.4G+BT5.1 Wireless distance: Up to 15m Key number: 5(include the roller wheel) DPI level: 800/1200(default)/1600DPI Key life: 5 million times(Silent design) Battery capacity: 500mAh Cable length: About 25cm Rated voltage/current: 3.7V/18mA System requirements: Windows 98/Me/2000/XP/Vista/Win7/Win8/Win10/Vista/Mac OS or latest Item size: 11.3 * 5.7 * 2.6cm /4.45 * 2.24 * 1.02in Item weight: Approx. 68.3g /2.41oz Packing list: 1 * Mouse 1 * Data cable 1 * User manual