Aweek&reg; RH770 Dual Band VHF/UHF High Gain SMA-F 144MHz/430MHz Telescopic Handheld Radio Antenna for Kenwood TK 3107 TK-3200 BaoFeng Two Way Radio UV-5R BF-888S Walkie Talkies RH770 two way radio handheld antenna Frequency:144/430MHz Dual Band; Band: Dual Band VHF/UHF Gain(MAX): 3.0dB(144MHz) 5.5dB(430MHz); Max Power: 20Watts Length: 21.5cm(92.1cm full stretch); Impedance: 50ohm Connector: SMA-Femal; V.S.W.R: Less than 1.5