Self-propelled +3 colors + Voice + MP3 + U disk + Bluetooth, you can adjust the volume and track
Insert U disk / TF card automatically search and play songs MPEG format
Built-in 600mAh lithium battery
Colorful lights, make life more romantic vitality.
Fit for: family gatherings, outdoor bonfire party, ballroom, KTV, bar, Christmas, Halloween, etc.
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