ipega Black Wireless Bluetooth Game Controller For Tablet Phone PC iOS Android Retail A built-in lithium battery, it can be long-term use, security and stability Built-in wireless Bluetooth 3.0, control range up to 6~8 meters, With telescopic stand, the phone can be placed on the holder, convenient for playing games, (Maximum support for 5.5-inch mobile phone.) Includes 5 multimedia function keys which are compatible with X / A / B mode, Built-in rechargeable Li-battery, can play about 20 hours continuously after fully charged Energy-saving, it will enter power saving mode after disconnection, Ergonomics design for comfortable and enjoyable play