Insten 2.4G Wireless Mouse with USB Receiver, Ergonomic USB Cordless Optical Mice Built in 4 Button Key Compatible with Computer Laptop Desktop PC Mac MacBook Game Gaming (Comfort Grip Designed) Blue Enjoy gliding across your desk without having to use a mouse pad with this wireless optical mouse. Color: Blue. Mouse size: 100x 65 x 35mm/ 3.94 X 2.56 X 1.34 inches. USB receiver size: 18 x 14 x 5mm/ 0.7 X 0.55 X 0.2 inches. Built in mini-receiver design. 2.4GHz wireless transmission. Effective distance is up to 10 meters. Ergonomically designed, comfort grip. Intelligent connectivity, no need to code, plug and play. USB receiver included, which can be stored neatly inside the mouse when not in use. With 4 Keys for easy internet surfing. Package Includes:. 1 x Wireless Mouse. 1 x USB Receiver. Powered by: 2 x AAA batteries(battery not included)