Outdoor Wireless Speaker and Dock Outdoor Wireless Speaker and Dock. The life of the party-in a wireless speaker that's as mobile as you are. Weather-resistant design for outdoor or indoor use. Versatile dock connects to your stereo system or MP3 player, transmits music wirelessly to speaker Dock transmits through walls, floors and ceilings to speaker from up to 150' away. No tuning-Phase Lock Loop circuitry automatically locks in and keeps audio signal clear and strong. Powerful 5 woofer and 1 tweeter deliver full, omnidirectional sound 3 channels prevent interference with other devices.