Features: 1.Walkie Talkie frequency range: VHF136-174MHz UHF400-430,430-470MHz 2.16 Semi-duplex channels 3.Squelch level selectable 4.High capacity Li-ion battery 5.PC programming 6.CTCSS&DCS 7.VOX 8.High/Low output power selectable 9.Low battery alarm 10.Dimension: 50(L)*30(W)*110(H)mm Specifications:GeneralFrequency rangeUHF:350-390,400-430,430-470MHzChannels16 channelsChannel spacing25KHz(width) /12.5KHz(narrow)Operating temperature-20°C— +60°CAntenna impedance50ΩWorking voltage7.4VDC (±20%)Battery capacity1200mAh(Li-ion)Frequency stability±2.5ppmDimension50(L)×30(W)×110(H)mmWeight185g(including battery pack)TransmitterPower output≤5WModulation mode16KF3E(width)/8KF3E(narrow)Clutter&harmonic≤-36dBmFM noise≤-40dBAudio distortion≤5%Adjacent channel power≥65dB(width)/55dB(narrow)Modulation limit≤5KHz(width)/2.5KHz(narrow)ReceiverSensitivity(at 12dB SINARD)≤0.165uV(width)/ 0.2uV(narrow)Adjacent channel selectivity≥60dB(width)/ 50dB(narrow)Intermodulation rejection≥60dB(width)/ 50dB(narrow)Spurious rejection≥60dB(width)/ 50dB(narrow)Signal to Noise Ratio≥45dB(width)/ 40dB(narrow)Audio output power0.5WAudio distortion≤5%