we manufacture many kinds of cb radio,uhf radio,mobile radio,supply durable products andoffer best price, deliver prompt Detailed Description Features:16 Stored Channels CTCSS\ DCS Function PC Programmable Wire Copy Function Chinese/English voice promptTechnical Specifications:HLT-620Frequency Range400-430MHZ440-470MHZFreq.CircuitPLL CircuitMODEF3EFormWith the frequently single worker or the different single worker frequentlyAntenna Impedance50ΩStep size5,6.25KHZDV VoltageDC7.4V±15%Operation Temperature-30°C +60°CDistances3-15KM(Open ground)Channel No.16channelDimensions115(L)*63(W)*36(D)MMWeight190GInclude the lithium battery group TransmitterPower Output3WMoudulation Distortion<5%(300KHz-3KHz)Max.Freq.Deviation<±5KHzSpurious Radiation±2.5PPMFreq.Stability6dBTransmitting Current≤1300mA ReceiverCircuitryDouble Super HeterodyneIntermediate Freq. 1st 1F38.850MHz2nd 1F450MHzSensitivity<0.18μV(12dB SINAD)Squelch Sensitivity<0.16μVSquelchProgramableAudio Power≥500mWReceiving Current<100mVStandby20mAAccessories: One charger One Ni-MH battery One rubber antenna One user's manualif you are interested in our products, pls feel free to contact me anytimetrademanager: qzhlt In addition: 400-430MHz and 440-470MHz is optional, but if you didnt point which band you want when you placed the order, we will deliver 440-470MHz.