car mobile repeater can effectively enhance the mobile signal while driving, a best solution for calling drops, calling through difficulty, and calling quality unideal problems! Choose REMOTEK RP5 car booster, choose a much clear life! RP5-Gsm: uplink 890-915MHz, downlink 935-960MHz; RP5-CDMA: uplink 824-849MHz,downlink869-894MHz; Output Power 3W