... . Audio Source: TF card,PC,MP3,MP4,MD,CD,DVD player, Mobile phone,etc 8. Switch available, ... are wm vibration speaker,usb cable,usage manual in the box.connection of audio and power resoure when you ... from the traditional one which base on electro-magnetic coils.It makes any hard surface play euphonious ... audio frequency for PC,music mobile phnone,Mp3,Mp4,CD,palm players and other portable fixtures. 1. ...