Aweek NA-773 SMA-F Female Dual band Antenna Extendable High Gain Antenna VHF/UHF for TK 3107 PuXing Baofeng UV-5R Two Way Radio PX-888K TG-UV2 Kenwood TK-370 Walkie Talkie (NA-773) SMA-Female Dual Band Extendable Handheld Antenna Folding height is 110mm, can extend up to 395mm Frequency: 144 / 430 MHz Gain: 2.15 dBi Widely used on handheld Radios with SMA male interface