Amphony 1700 Wireless Speaker Kit with one Wireless Amplifier, 2x40 Watts, 300ft range MAKES ANY SPEAKERS WIRELESS: Install rear surround speakers without long ugly speaker wires - comes with a stereo wireless amplifier rated at 2x40 Watts - the wireless transmitter connects to any analog audio output including amplified speaker outputs - ideal for connecting to surround sound receivers - works with any-brand home theater receiver - also great for installing speakers all over your house without drilling holes into your walls ADVANCED 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 POWERFUL AMPLIFIER: The wireless receiver includes a 2x40-Watt power amplifier - proprietary amplifier design featuring linear frequency response and ultra low distortion regardless of the connected speaker load SUPER COMPACT: The wireless amplifier measures 5" x 3.5" x 2" only - easily hides away - mounting holes for attaching behind speakers - totally out of sight MULTI-ROOM CAPABLE: Transmitter can pair to up to 4 wireless amplifiers - multiple transmitters can be used within a home - create distinct audio zones - pairing is a simple push of a button - transmitter also works with iFinity wireless speakers - 100% Risk-free 1-year Manufacturer Warranty with responsive easy-to-reach Customer Service Support