JINOU Bluetooth BLE 4.0/4.1 Programmable Beacon/iBeacon/Eddystone TI CC2540/2541 Chip JO-BEC05 Replaceable Battery compatible with iOS, Android, and Eddystone device. available for long distance transmission,and the effective distance is about 50m ( 164 feet) in open air. powered by 1pc CR2032 button cell(battery is not included). The battery life is about 6 months~1 year. The length of the battery life depends on the length of the broadcast interval. Users can use Jinou Android app and iOS APP "BeaconParamSet" to set UUID, Major, Minor, Device Name, Password, Broadcast Power, Transmission Interval etc. Our company offers OEM and ODM services. We can customize the size, casing and function according to customers requirements.