The eCost shutter is small enough to have with you on your keychain whenever you need it. - Simple and easy camera shutter remote control for compatible with iPhone, compatible with iPad, Android and compatible with Samsung Galaxy / Notes. - NO APPS TO DOWNLOAD when using an compatible with iPhone Xs, Xs Max, Xr, X, 8, 8+, 7+, 7, 6S, compatible with iPad, iPod Touch, compatible with Samsung Galaxy S8, S8+ S7, Galaxy S7+ S3, Galaxy Note 3 2, Galaxy Note 8 10.1, Moto X, Nexus 4, Nexus 5, Nexus 7 or Nexus 8. - Operational up to 30 feet (about 10 meter)2 Pack eCost Wireless Remote Control Camera Shutter Button for Smartphones: compatible with iPhone and Android Cellphones + eCost Connection Microfiber Cloth The product is a Bluetooth remote self-timer for mobile phones, which can be used immediately without any software installation. It is applicable to all brands of mobile phones with IOS, Android 4.1 or above. Wide compatibility and stable performance Built-in button battery with a capacity of 200mah can take 5000-8000 photos Self-timer can be taken from a long distance, and it can reach 10 meters away without obstruction. With 5 function keys: switch on / off, Bluetooth pairing, video shooting. Take photos, Android configuration, IOS configuration. .Various colors available