1. Mini vibration desk speaker is portable. 2. Put on desk, produces stereo sound. 3. Fashionable design. 4. Easy to carry. Mini vibration desk ... Source: TF card,PC,MP3,MP4,MD,CD,DVD player, Mobile phone, etc 8. Switch available, volume adjustable9.100% perfect design ... meas:12x11.2x7cmCarton meas:57x26.2x42.5cm50PCS/CTNG.W.: 25kg Mini portable vibration desk speaker,portable laptop mini speaker