Acoustic Research AW-877 900-MHz Indoor Wireless Speakers - Pair

Enjoy Music or TV sounds anywhere inside the house without wires Up to 250 feet range through walls, floors, Windows and ceilings Easy and reliable Tuning phase-locked loop circuitry for a clear Audio signal Dual power mode runs on Optional Batteries or the supplied AC adapter 3 Channel select Switch allows you to optimize your reception Push-button, auto-lock tuning High-quality sound from 2-way speaker design 7.5-Watt per channel RMS 1" dome tweeter, 4" woofer Integrated power/volume/scan control (front face) Left/mono/right switch (rear face) Frequency reponse: 20Hz - 20Khz