Lewong Low Profile Phantom Antenna SL16/UHF-J/M U/V 144/430MHz 80W 2.15/3dBi for Car Radio Mobile/Station (1 Pack) 2.15/3.5dBi ;Max power: 80W; Boost the signal of your radio significantly Connector: UHF/SL16/PL259-M/J; Transmits 2 meter VHF 70cm UHF (Frequency: 144MHz(136-174MHz)&435MHz(400-470MHz) Length Approx: 9cm/3.5 inch: Suitable for car mobile radio station Easy to install, plug and play installation;It is a great add-on/improvement for your radio 30 days without reason return,Please order with confidence