Insten Black 2.4G Wireless USB Whell Optical Mouse for PC Laptop Enjoy gliding across your desk without having to use a mouse pad with this wireless optical mouse. It can be used on almost any surface because it uses sensors to record the movement optically Plug-and play. Comfort grip Features: 2.4GHz wireless transmission, up to 10 meters of operating distance, built-In mouse memory, 800/1600dpi Color: Black Mouse size: 100x 65 x 35mm USB receiver size: 18 x 14 x 5mm Mouse weight: 64g Power: 2 x AAA battery (not included)