FunctionFrequency range: 27MHz; Maximum power: 20W; Connector type: bncmal; Impedance: 50ohm; SWR: 1.5UniqueTelescopicantenna CB-01 Radio Antenna Length: Approx. 9 inch (25cm) Retractable/Telescopic CB -02 Radio Antenna Unstretched Length: Approx. 9.17 inch (23.3 cm), Only 51.18 inch/130cm Full Length, Portable at any time, easy to carry and replace. CB-03 Radio Antenna Length: About 16.54 inch (42cm)CompatibleModelCompatible with most handheld CB Radios; Such as Cobra Midland Uniden, other 27MHZ radios are suitable for this antenna. This can increase the reception performance on your CB radio with this antenna.CompatibleWith CB Radio ModelCobra HH50WXST HH50 MRHH350FLT C75WXST HHRT50;Midland:75-822 75-785 MHS757W44;Uniden: BC75XLT PRO401HH PRO501HH BC125AT;Maxon HCB-10C; If your radio model is not compatible, please see my other item. Then we will help you find one that suits you.CB-01CB-02CB-03Description:1. All our products are brand new.2. Connector type: BNC3. Frequency range: 27MHz4. Maximum power: 20W5. Impedance: 50ohm6. Weight: 80g7.SWR: 1.5Compatible with CB Radio ModelCobra HH50WXST HH50 MRHH350FLT C75WXST HHRT50;Midland:75-822 75-785 MHS75 7W44;Uniden: BC75XLT PRO401HH PRO501HH BC125AT PC88 LTX;Maxon HCB-10C;Other BNC 27MHZ radios Suitable for this antenna. Package includes: 1 X 27MHz BNC antenna