... 3.earphone function 4.replaceable battery 5.Mini Speaker with unique design This speaker has been put into stylish and economic element ... takes you into a perfect music world.Mini, portable digital speaker for your convenience, connecting to your MP3,MP4, CD, DVD, iPod ... , iPhone, GPS, PSP, mobile phone, notebook computer, Hi-fi speaker, U-disk and TF card.Perfect combination of NANO-style ...