Description:This is a telescopic antenna which is convenient to carry and use; With 25w and 3.5dBi features、 it can enhance the ability to receive signals、 what?．s more、 it also has an significant effect in extending communication distance; it will give you a surprise when using.New Dual Band High Gain Amateur Car Radio Mobile/Station Antenna VHF/UHF 144/430MHz 25W 2.15/3.5dBi SL16/UHF-J/M.Feature:1. All of our items are Brand new and high quality.2. Frequency: 136-174MHz&400-470MHz.3. Connector: UHF/SL16/PL259-M/J.4. Band: Dual Band VHF/UHF.5. Polarization: Vertical.6. VSWR: less than 1.5.7. Impedance: 50ohm.8. Radiation: Omni.9. Gain: 2.15/3.5dBi.10.Max power: 25W.11. Length: 9cm.12. Weight: 122g.13. Color: Black.Package Includes:1X New Black Dual Band 25W 2.15/3.5dBi Car Radio Mobile/Station Antenna