11 iP37BB Get 50% Off on Portable Speaker System for iPhone/iPod at iHomeAudio.com by using . This is valid through 28th. Take the iP37 with you anywhere and let the music play! The iP37 features high quality stereo speakers and a class D amp for big sound in a compact protective speaker case. Operates on 4 AA batteries or on included 100-240VAC adaptor. Perfect for travel or any informal setting. Line-in jack to play any audio source.