EXPIRED: Excalibur SoundMaster 157BK Wireless Speakers and iPod Dock

Each spherical 6-watt speaker has its own amplifier and rechargeable battery. Uses a 915 MhZ wireless signal so you can move the speakers up to 120 feet away from the base station and still hear clear music. Just put the speaker spheres back on the base to charge the speakers and automatically turn off the wireless function.