Product Description: Frequency Range: VHF 136-174 MHz (Rx/Tx). UHF 400-470MHz (Rx/Tx);65MHz ~ 108MHz (Only commercial FM radio reception)Memory channels: Up to 99 channelsFrequency stability: 2.5ppmFrequency step: 5KHz/6.25KHz/10KHz/12.5KHz/20KHz/25KHzAntenna impedance: 50OOperating temperature: -20°C to +60°CSupply voltage: Rechargeable Lithium-ion 7.4V/2000mAhMode of Operation: Simple or semi-duplexDuty cycle: 03/03/54 min (Rx/Tx/Standby)Dimension: 113x58x36 mmWeight: 208g (included battery+ antenna)TransmitterRF power: 5W/1WType of modulation: 16KØF3E/11KØF3EMaximum deviation: = ±5kHz / = ±2.5kHz (W/N) Package include:1*BaoFeng UV-B61*7.4V/2000mAh Battery1* Antenna1* Battery Charger1* Belt Clip1* Hand Strap