speaker bluetooth 1.lower price and good qualiy 2.connected to PC, MP3, MP4, CD, and other portable media players speaker bluetooth Commodity ... wireless from you Bluetooth A2DP enabled by mobile phone and MP3/MP4 player, PC, etc.2.Automatically connect with the Bluetooth ... running devices;3.Can be also connected to PC, MP3, MP4, CD, and other portable media players via 3 ...