Rel Acoustics Arrow Wireless
Arrow Wireless is specifically designed for the Rel Acoustics T/i series. The transmitter takes its signal from the amplifier (so your subwoofer and speakers get exactly the same signal). The receiver sits by your T/i subwoofer. The system is up and running in 10 seconds.
Arrow enables the simultaneous transmission of the high-level stereo and .1/LFE signal needed for a high-quality home cinema system.
See manual below.