Features: 1.Simple Operation: With the mobile controller, you can press the button with your forefinger to move, rotate, aim and shoot at the same time, thus eliminating the problem of all operations with your thumb. 2.Applicable Mobile Phone: AK03 mobile game controller is compatible with mobile phones with width 67?88mm / 2.6?3.5in. 3.Folding and Stretching Device: The built in folding and stretching device is compatible with most mobile phones on the market. 4.Cool Light and Wind Regulation : AK03 mobile phone cooling fan has cool light, which can be turned off. It has three speed wind regulation. 5.Improve Game Experience: The AK03 mobile phone coolerr uses RGB lightning to improve your game experience and help you become a game expert. 6.Long Battery Life: AK03 mobile phone cooling fan has low power consumption and long battery life. specification:Item Type: AK03 Mobile Game Controller Product Material: ABS Charging Voltage: 3.7V Weight: Approx. 135g / 4.8oz Battery: Fan Lithium Battery 400mAh (Shipped With Built In Battery), 2 x Handle 2 Lithium Battery 50mAh (Shipped With Built In Battery) Applicable Mobile Phone: Applicable Width 67-88mm / 2.6-3.5in PackageList: 1 xMobilePhoneCoolingFan 1 x Charging Cable 1 x Chinese And English Manual 1 x Storage Bag