MUSIC ENGINE SOUND PROVIDER

*5 (five) colors available. (Red, Orange, Yellow, Green and Blue)
*Not only be used as laptop speaker, also can be used as MP3 speaker.
*Unnecessary to use other power supply to connect MP3.
*4 Rechargeable AA batteries (included)
*Batteries are rechargeable and should last for approx 3 years before replacing
*Also has the external power for working longer.
*USB cable / power supply interface
*Mini USB input port
*3.5mm Audio signal interface
*Built-in battery itself could provide 3 hrs power.
*Item dimention 2"(dia) X 4"(h).
 

VARIOUS SOUND PERFORMANCE : It shows different voices style on different sound transmits, to bring the surprise to the user every time.  Specific details as following...
 WOOD: Rich and sumptuous mid-range sound
METAL: Strong bass sound
PAPERBOARD: The clarity of the sound reduced, and it feels like vinyl disc
GLASS: Clean and transparent sound
HOLLOW WALL: Good spacious sound performance