... solution in the past complicated Features: 1.RS40 wireless speaker set the transmitter,receiver,amplifier,and speaker as a whole. 2.Plug and ... , distance up to 100feet(max) can receive the signal. 5. Wireless install,just turn on the power. 6. Has the functions ... performance Better MobilityWireless speaker system build in one FM transmitter(DC9V) and FM receiver (DC12V) with 12 watts(5 subwoofer) + 2 ...