Korus Audio V400 Premium Portable Wireless Speaker (Expands to a 4 Speaker System) No pairing or Wi-Fi required. Just plug in 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. Stream audio to 1 or up to 4 Korus speakers in perfect sync with no "pops" or lags like Bluetooth or Wi-Fi speakers. Stream audio for videos and games to add a BIG sound experience with no audio lag! Wireless range up to 65 ft. indoors and 150 ft. outdoors; 3.5 mm audio-in port Wide Stage Acoustic design and 60 Watt power delivers big sound with incredible clarity and deep bass response.