Retevis RB17A Walkie Talkies with Earpiece and Mic, GMRS 2 Way Radios Long Range, Two Way Radios Rechargeable, Durable, for Jobsite Construction Industrial(Green,4 Pack) - FA9191CX4-J9122AX4-C9034AX4

• High power walkie talkies. designed for commercial environments with dense buildings and obstacles. you can get clear and stable audio in areas with strong signal competition compared to consumer grade walkie-talkies Due to FCC regulations. RB17A has high power on channels 1-7 and 15-22, the last 8 channels are used to connect to repeaters, please make sure to talk on these high power channels to get a longer call range Rugged and durable walkie talkie. can withstand dust, vibration, extreme temperatures and the rigors of daily use. no complicated buttons on the body. so employees can easily get started Long battery life 2 way radio. USB charging. built-in 2200mAh lithium-ion rechargeable battery. can be used continuously for more than 15 hours. meet the needs of standard shifts Portable two-way radios. Remote emergency alarm. VOX ready. low battery alert. squelch. certified by FCC. FCC ID: 2ASNSRB17A (you need to activate VOX function by firmware). Support CHIRP RB17A can talk to Retevis GMRS walkie-talkie directly. CTCSS/DCS of each brand is different, so it can't talk to other brands of walkie-talkies, if you need to talk to other brands of walkie-talkies, please contact us through Amazon to get the firmware