WH-118 two way radio FM RADIO TOT, CTCSS/DCS 1 year warranty 3-5days for shipping ... -U,U-V,V-VMemory channel128Channel spacing12.5KHz /25KHzFrequency stability±2.5ppmAntenna impedance50ΩOperate voltagerated DC7.4V TransmiterRF output powerhigh: 5W ... ,low: 1WFM modulation modeF3EAdjacent70dB(Wide),65dB(narrow)Modulation limit±2.5KHz/12.5KHz,±5KHz/25KHzAudio distortion≤5% ReceiverRX sensitivity0.25 ...