Ergonomic surface to reduce hand fatigue and 3 adjustable DPI options, this mouse will make your using experience more enjoyable._x005F_x000D_Feature:_x005F_x000D_3 DPI: 3 adjustable DPI switch, 1600, 1400, 1200, control your own speed freely. No need any driver, plug and play directly._x005F_x000D_2.4G: 2.4G wireless transmission technology, enjoy the fast data transmission at the convenience of the wireless technology._x005F_x000D_Comfortable: Contoured shape and textured natural bamboo grips keep your hand comfortable even after long hours._x005F_x000D_Compatible: Compatible with most system including for Windows, PC, Laptop, Computer and other device._x005F_x000D_Energy-Saving: The auto switch off function will save energy, it will switch off when your PC is turned off._x005F_x000D_Specification:_x005F_x000D_Model Number: MG95_x005F_x000D_Project Type: Ergonomics Optical Mouse_x005F_x000D_Resolution: 1600/1400/1200DPI_x005F_x000D_Maximum Working Range: 10m_x005F_x000D_Color: Yellow_x005F_x000D_Material: Bamboo_x005F_x000D_Battery Capacity:2*AAA battery (not included)_x005F_x000D_Button Click Life: 5Million times_x005F_x000D_Rated voltage / current: DC 3V / 5mA_x005F_x000D_System requirements: for Windows Vista / Win 7_x005F_x000D_Item Size: Approx. 9.1cm * 5.5cm * 2.6cm / 3.6in * 2.2in * 1in_x005F_x000D_Item Weight: Approx. 84.1g / 2.96oz_x005F_x000D_Package Size: Approx. 16.5cm * 10cm * 4.2cm / 6.5in * 3.9in * 1.7in_x005F_x000D_Package Weight: Approx. 177g / 6.23oz_x005F_x000D__x005F_x000D_Package List:_x005F_x000D_1 * Mouse_x005F_x000D_1 * USB Receiver_x005F_x000D_1* English User Manual