Product Name:iBeacon Battery:CR2016 Working time:4.63months based on broadcasting rate 1s' Distance::50m in open air Dimensions:40.3*23.9*2.6mm Chipset:Nordic nrf51822 Application:iOS7.0 above with tool APP & Andriod BLE 4.0 above with SDK Certificates:CE FCC ROHS MFI Function:Broadcasting advertisement or info. Color:Black &Silver