With Cable+Antenna,GSM booster,GSM repeater,900mhz booster,mobile phone repeater,600 square meters suitable,1 antenas included ... the device.Note: you can order a separate indoor antenna or outdoor antenna to strengthen the signal. Power Supply:INPUT: AC: 100V ... signal is not good or bad. With Cable+Antenna,GSM booster,GSM repeater,900mhz booster,mobile phone repeater,600 square meters suitable,1 ...