Wireless speakers have been around for a while, but this pair is different, than most, designed for outdoor use. The Wireless Outdoor Monophonic One-Speaker System with 2.4GHz Transmitter for iPod and MP3 from Sharper Image shows off a 50 meter operating range and has just one weather-resistant wireless speaker that can be upgraded to “stereo” using an auxiliary speaker which is not included but available. At least your guests will be entertained at the get together with this $199.95 device. It is compatible with your iPod, MP3, CD player, and other devices that use a compatible AUX IN jack.