UHF 400-470MHz SCAN VOX Chinese/English Voice Prompt Wide/Narrow Band Selection High-Low Power Busy Lockout Function Low Battery Warning Special Signaling 50 CTCSS/ 208DCS Specification: Frequency Range: 400-470MHz Supply Power: DC3.7V Memory Channel: 16 Antenna Configuration: Internal Antenna Antenna Impedance: 5ohm Ground Method: Cathode Dimension 136*59*21mm Transmitter: Output power: 2W/0.5W Modulation Mode: FM(F3E) Max. Frequency Deviation: ≤5KHz Sparious Radiation: ≤7.5uW Preemphasis Character: Per Octave 6dB Emission Current: ≤1.2A Receiver: Audio Distortion:< 10% Intermodulation Interference Resistance Wide/Narrow :≤65dB/≤60dB Recieving Current≤380mA Standby current:≤25mA