Wide range of application: This item is a portable Bluetooth remote control device can be hung on a keychain, can be used as a mobile phone and tablet PC camera shutter, TV box remote control, PC remote control, Bluetooth wireless game controller Practical: It can be used as a remote self-timer to take photos with your Android / iOS smartphone. With this, you never need to ask a stranger to take pictures. What's more, it can be used as a wireless mouse for Android device and PC, you can play Portable and compact: Very small and light, portable to use, easy to put on the key ring. Built-in 180mAh lithium battery. No driver required, plug and play. And it could be used for about 40 hours when continuous playing games. Bluetooth 3.0: Wireless distance up to 10m.