Handhold interphone,two way radios , walkie talkies , transceiver,walky talky VHF 5W/UHF 4W .With FM radioBuilt-in 50 CTCSS and 104 DCS, end-tone elimination Voice annunciation function PC programming Emergency alarmwalkie talkies , transceiver,walky talky technical specifications: Frequency range: 136-174MHz and 400-470 MHzChannel capacity: 16 Operating voltage: 7.4V Li-ion Working temperature: -20 to +60°C Frequency stability: ± 2.5ppm Dimensions (without antenna): 55 x 105 x 35mm Transmitter: RF power output: Low: 1W High: 5WModulation type: F3E Stray radiation: >60dB Adjacent channel power: >55/65dB Maximum frequency deviation: ± 5kHzAudio distortion: <=5% Modulation character: ± 3dBReceiver: Sensitivity (12dB SINAD): 0.2μV Adjacent channel selectivity: >=60dB Noise respond: >=60dB Audio power output: 500mW Audio distortion: <=5% Standby current: ≥25mA. I-700 two way radioTwoway radio accessorytwo way radio package Iradio Handhold interphone,two way radios , walkie talkies , transceiver,walky talky