Sun Electronics TV Booster CB-K20L P CSBS Line Booster Indoor Use New, Unused! This is mainly a BS/CS signal amplifier. For those whose BS reception is not so good, or for spare parts for construction. Please check and make your decision based on the photos from photo 2 onwards. *Please refrain from purchasing if you are concerned about minor scratches on the outer packaging. *Due to concurrent display on other sites, it may not be available depending on the timing. #LineBooster #Booster #BSBooster #BS #CS #bs #TerrestrialDigital #AntennaCable #Antenna #AVEquipment #AntennaParts #AntennaComponents #CoaxialCable