Not only can it be used as laptop speaker, also can be used as MP3 speaker.
This speaker makes it unnecessary to use another power supply to connect the MP3.
The Music Engine Sound Provider comes with 4 Rechargeable AA batteries (included), which should last for approximately 3 years before replacing.
The music engine sound provider also has:
External power for long working time
USB cable / power supply interface
Mini USB input port
3.5mm Audio signal interface
The built-in battery itself could provide 3 hrs power.
Item dimensions 2"(dia) X 4"(h).
VARIOUS SOUND PERFORMANCE : It shows different voice styles on different sound transmits, to bring the surprise to the users 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
