... TFcard . Rechargeable Li-ion Battery mini digital sound box speaker aluminum housing1. Powered via: Built-in Li ... Source: TF card,PC,MP3,MP4,MD,CD,DVD player, Mobile phone,etc 8. Switch available, volume adjustable9 ... details:Packing: high quality color box for each unit Packing box meas:12x11.2x8 cmCarton meas:57x26 ... ! Vibration speaker is not just an audio box,but it is a new stylistic product of ...