ulliMAKES ANY SUBWOOFER WIRELESS: Install your subwoofer or active speakers without long ugly speaker wires - comes with a transmitter and receiver - the receiver can also connect to an external power amplifier - also great for installing speakers all over your house without drilling holes into your walls ATTENTION: This product DOES NOT work with passive speakers/liliADVANCED WIRELESS TECHNOLOGY: Stereo audio is transmitted in a digital format without audio compression (full CD quality) - free of static and interference - the wireless signal can travel through walls and ceilings to other rooms of your house - avoids interference by using adaptive frequency hopping - signal is not affected by wireless networks or cordless phones/liliLARGE FREQUENCY RESPONSE: This wireless set transmits full frequency audio and can be used for full-frequency active speakers/liliSUPER COMPACT: Both transmitter and receiver measure 2.6' x 2.3' x 1.1' only - easily hide away - totally out o