" 1pc Auto TV Antenna VHF UHF System 20db Booster Car Electronic FM Antenna 14db Gain Amplifier With Annunciator FM Antenna System:Input voltage: 12VGain: FM 14db AM-LW-SW 18dbCable length: 18CMAbsorption: ~8 mAOutlet capacity: ~90 pFReception Range: FM-AM-LW-SW Description:Length: 18CMColor: BlackOperating voltage: 12 (V)Mounting: AdhesiveApplicable models: General Package: 1pc as pictures show. "