CHYI 2.4G Wireless Infiniti Sports Car Shape Mouse Computer Gaming Optical With LED Flashing Light High Quality, Ergonomically designed, comfort grip. New Style: Infi-niti Sport Car StyleHigh Resolution: 1600DPIDimensions 11.2cm length x 5.5cm width x 3.6cm heightPower: 2 x AAA Battery(Not Included)Switch Life: 5 million cyclesButton: 2 buttons with scroll wheelMost suitable for Laptop user and PC userWireless Technology works on most surfacesWireless carrier frequency: 2402MHz-2480MHzMini Receiver can be contained and easy to carryMaximum acceleration: 14 inches per second2.4GHz wireless transmission up to10 metres operating distance.With headlight and rear lights.Intelligent connectivity. no need to code, plug & playFrequency-hopping anti-jamming ability timely superacidCompatible with Windows XP, Vista, Windows 7, ME,2000 and Mac OS...or lateNote:1.when you use the mouse please use mouse pad together2..It will be better if plug the USB receiver and turn on the Mouse at same time.If it can not go to pairing mode,please turn off the Switch,pull down the USB ,then try again. Package Included:1* Wireless Mouse1* USB Receiver