Retevis 2 Way Radio Antenna SMA-F Dual Band Antenna Compatible Baofeng UV-5R BF-888s Retevis H-777 Walkie Talkie (1 Pack) Connector SMA-F; Length 8.46 inches(21.5cm); Dual frequency144/430MHz (136-174+400-470)MHz This antenna features a 2.15dBi signal with up to 20W of power can boost the signal of your radio significantly The excellent ABS Heat shrinkable sleeve material not only protect your radio but also for a long time use Small body but big performance can extend the range of your radio communication and easy to pack up Simple and convenient return process; 60 days warranty and 30 days no reason to return