1, for IPOD/iphone 2,stereo audio connector 3,convenient for other audio devices 4, easy to control the volum 5, portable Features:Left and ... at the bottom to play audio devices such as MP3/IPOD/iphone, no need to use exterior cablesMulti-functional cable provided ... chamber, the height is 70mm)Net weight: 80g easy to control the volume , lovely speaker for IPOD/iphone and other audio devices