Bluetooth: Its Bluetooth connection range is up to 10 meters, and it is compatible with all devices with this connection. Keychain
size: Its compact size and ultra-light weight make this shutter release very easy to carry around; you can even use it as a keychain.
 Compatibility: It is compatible with different operating systems such as iOS and Android. You can also download a free app (search for keywords on Google Play and Camera360 in the app store), pair your device with this controller, and enjoy the fun of taking beautiful photos. The key to great selfies is in your palm with this controller.