China C15C Series 15~20dBm Dual Wide Band Repeater/ Mobile Phone Booster (C15C-GD, C20C-GD, C15C-CP), Find details about China Phone Booster, Dual Band from C15C Series 15~20dBm Dual Wide Band Repeater/ Mobile Phone Booster (C15C-GD, C20C-GD, C15C-CP)