Acoustic Research AW822 900-MHz Indoor or Outdoor Wireless Speaker

Enjoy Music or TV Sound anywhere inside or outside the house without wires Up to 250 feet range through walls, floors, Windows and ceilings Great for outdoor settings, rugged design and stable on uneven surfaces Easy and reliable tuning, phase-locked loop circuitry for a clear Audio signal Omni-directional sound projects high-quality sound in all directions Automatic Level Control (ALC) avoids sudden volume blasts or valleys Dual power mode runs on Optional Batteries or the supplied AC adapter Channel select Switch allows you to optimize your reception Left-Mono-Right switch provides the option for Stereo operation with another AW822 2-Way Acoustic Design, 2" dome tweeter, 5" woofer 7.5-Watt RMS internal amplifier Frequency response: 40Hz - 15kHz