With Cable+Antenna,GSM booster,GSM repeater,900mhz booster,mobile phone repeater,600 square meters suitable,1 antenas included 100% guaranty ... fast shipping ;GSM 900MHZ Mobile Phone Signal Amplifier RF Repeater This device is specially designed for 900MHZ GSM mobile ... not good or bad. With Cable+Antenna,GSM booster,GSM repeater,900mhz booster,mobile phone repeater,600 square meters suitable,1 antenas ...