brand new and high quality The wireless mouse is cost-effective way. The shape is for ideal for any user. This mouse provides a qualified and durable solution that exceed the expectations of its value pricing. 2.4GHz digital wireless transmission to provide furthest reach 10 meters from the operation 16 automatically switchable working frequency Wireless USB Optical Mouse Tracking method: Optical Intelligent network functions Interface: USB 2.0 Rated working Voltage:3.0V Rated working Current:25mA Button: 2 Buttons + 1 Scroll Wheel Automatically Power-Saving sleeping function Button: 2 Buttons + 1 Scroll Wheel Wi-Fi Range: 10m approx. Resolution: 1600DPI Color: Silver,Yellow,Green,Orange, Black,Red Powered by two AAA batteries (not included) Size:(L*for W*H):11.30*5.00*3.50cm/4.45"*1.97"*1.38" Quantity:1Set