Wireless technology affords you even more freedom - unshackle yourself from your desktop and use this mouse from any angle. 1200 optical sensors and blue LED technology mean you’ll have no need for a mouse mat and can enjoy both exceptional accuracy and incredible speed. Simply pop the compact receiver into your USB drive and a battery into the mouse and you’re good to go! This mouse has been specially designed for portability and the receiver even fits into the mouse itself so you can pack it up and take it anywhere. Specifications Blue LED technology 1200 optical sensors Requires 1 x AA battery USB receiver (fits inside mouse for portability) NB: Supports Windows 7/8/10, Mac OS 10.3 or later and Chrome OS. Dimensions: H2.5 x W10.1 x D6cm Colour: Black