... vibration speaker 2.Suit to computer, laptop, iPad, mobile, etc, work with any 3.5mm audio device. Bomb Vibration speaker ... LF-113B u FEATURES ² Bomb vibration speaker² Suit to computer, laptop, iPad ... pad to different subjects have different sound and vibration effect.² Power: built in li-battery² Output ... purple ² Packaging:white box Mini Boombox Speaker