1).Powerful transmitter,3000mW 2).Long range:500-3000M(without block) 3).Support VCD,DVD,TV,Camera ... signal 4).RCA / AV port 1.2GHz 3000mW long range wireless video transmitter receiverProduct Name:video transmitter receiverModel:QLM-1215 ... If you need longer range, you should install high gain antenna,suggest 13DB yagi antenna: 1.2GHz 3000mW long range wireless video transmitter ...