Bluetooth version Bluetooth 4.2 Operation Frequency 2402~2480 MHz Modulation Type GFSK Number Of Channel 40 Antenna Type Monopole Antenna Gain 0dBi Max. E.I.R.P -4.76dBm CE Maintenance EUT Operating temperature range: -10 to 50 Power supply: DC 3.7V The device complies with RF specifications when the device used at les sthan 20cm from your body. Declaration of Conformity shenzhen chiteng technology co.
