Marmitek Surround Anywhere 221 - Audio Transmitter for Speakers, Digital Latency-Free Transmission, Wireless Surround Speaker Connection, Connect Two Speakers Wirelessly

Volume control: volume control on the receiver ensures a balanced balance between front and rear speakers. Built-in amplifier: the built-in amplifier in the receiver has more than enough power for your speakers. Loudspeaker outputs: due to the direct connection to the speaker output of your surround set, the volume changes automatically when you set the sound louder or quieter. Secure pairing: transmitters and receiver are connected together (secure pairing), so you can use multiple sets in one and the same room (6 max). Uncompressed, digital transmission ensures sound that is better than CD quality and does not disturb or delay.