Specification:Power Supply : 1 x AA Battery (Not Included)Size : 105*73*40 mmDPI: 1200Material: ABSNet weight: 60gColor: Pink,Yellow,Gray,Blue,PurpleStyle: Wireless MouseTransmission distance: 10 metersOperation method: plug in 2.4G receiverGo to sleep: 8 minutesWake up: move the mouse or click the buttonSystem requirements Operation System: Windows 98/Me/2000/XP/Vista/7Mac OS X+LinuxFeatures:Cute cartoonm design, it is very cute . You can send it for your kids or girl friend as gift.Optical tracking technology, working on many different surfaces and ideal usage for home, office or game. Wireless 2.4 GHz mouse, comfortable touch.Plug and play mode, no need driverThe dongle can be stored into the mouse neatly when it is not usedReceiver storage space and carrying easily System support: Windows 2000, Windows XP, Windows 7, Windows Vista, Windows 98, Mac OS, Windows ME, Windows 8