K-Type Two Way Relay Walkie Talkie Repeater Box For Two Handheld Radio Baofeng Wouxun Puxing HYT TYT Zastone 2-Pin. Handheld radios used currently on the market for basic use rate in 400-470MHz, most of the power 5W, this walkie talkie in open call distance can reach 5-8 km, while in dense urban, but only a short distance of 1-2 km, or less.
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