... Booster/Repeater unit with one indoor rubber antenna and power supply1x Outdoor Yagi Antenna1x 10m coaxial ... repeater can capture and boost a weak mobile signal through a high gain antenna to ensure reliable ... basements, offices, warehouses, parking lot, elevator and larger buildings.It can also improve indoor electromagnetism environments ... Booster / Repeater Set: GSM900S with power, antenna and cable