Portta PETCCG Bluetooth Wireless Remote Control Camera Shutter Release Self Timer for iPhone 5, Green Simple and Easy Wireless Setup. Long distances for use, up to 12 meters Compatible with mobile phoneiPhone,iPad,iPod,S3,S4which requires support Bluetooth 4.0, IOS 6.0 or 4.2.X.Equipment connected to the phone, easy to look for a mobile phone. Can be used as a remote controller to take photos. Small and beauty, convenient to carry on with other tiny goods to hang together. Only need one CR2032 button battery (can use six months to one year), and easy to change.