... /dcs repeater 2) with AGC function 3) CE approvel C10/C15/C20 Consumer Booster /cell phone signal repeater / amplifier ... a wireless repeater, extended phone battery life.6) LED light working and signal condition indicators.7) Available models: C10-GSM, C10-CDMA, C10-DCS, C10 ... -PCS, C10-WCDMA C15-GSM, C15-CDMA, C15-DCS, ...