Hammacher Schlemmer offers this Interference Avoiding Wireless Speaker that produces mellifluous sound by operating over an FM frequency that avoids interference from cordless phones and microwaves.
The speaker comes with a wireless transmitter that docks your iPod/iPhone and connects other MP3 player, PMP, cellphone or other audio source using 3.5mm audio jack. It has a wireless range of up to 100-feet. The speaker features 3-watt tweeter and 12-watt subwoofer. This Interference Avoiding wireless speaker is priced at $99.95.