Dual band professional WBPR (mobile phone signal booster,Cell Phone Booster,Mobile Signal Booster,cell phone repeater,Mini re Dual band professional WBPR(mobile ... phone signal booster,Cell Phone Booster,Mobile Signal Booster,cell phone repeater,Mini repeater,Mobile Signal Amplifer ... ~1910 / 1930~1990MHz 2100M:1920~1980 / 2110~2170MHz Dual band Booster