... :400g impedance:50ohm mobile signal repeater for GSM 900Mhz and DCS 1800MHz:dual band Mobile signal booster/repeater/amplifier ... as bars ,cafes ,dance halls ,cafes ,fitness clubs ,leisure and entertainment,etc.D Elevator ,lift wells in particular ,not in ... ,office ,luxury yachts ,private cars ,public security system and road safety management ,etc. dual band mobile signal booster/ Repeater/amplifier ST ...