Korus Audio V600 Premium Wireless Speaker (High Gloss Black) Stream audio to up to 4 Korus speakers in perfect sync with no "pops" or lags like Bluetooth or Wi-Fi speakers 100 Watt power handling delivers a room-filling sound with low distortion and deep bass response plus "Live Stage" Acoustic Signature for crystal clear low distortion sound with side firing tweeters for extra-wide soundstage Plug in or use anywhere with up to 90 hours of continuous audio playback on 6 "D" batteries (not included) and integrated handle for easy portability Wireless range up to 65 ft. indoors and 150 ft. outdoors; 3.5 mm audio-in port for a wired connection to your devices when you need to Just plug the Korus 30-pin, Lightning or USB Baton audio transmitter compatible with your iPhone, iPad, iPod touch mobile devices (running iOS 5 or higher), PC, or Mac computer and instantly stream your favorite music, videos and games.