Retevis RT20 Soft Antenna Dual Band SMA-F for Kenwood BAOFENG UV5R 888S Retevis H777 RT7 Handheld 2 Way Ham Radio (4 Pack) Dual band VHF/UHF;Frequency 144/430MHz Max power can get 10W Connector is SMA Female Antenna Length reached 6.6cm Soft and Powerful short antenna can boost the signal of your radio significantly