Arctic S111 M Mobile Mini Stereo USB Sound System with 2 x 2 W RMS Integrated 2000 mAh Lithium Polymer Battery - Retail Packaging - Black Portable - The rechargeable 2000 mAh lithium polymer battery brings up to 12 hours playback time, everywhere! Enjoyable Sound - The unexpected powerful sound not only beats your laptop, smartphone or tablet speakers. Protected - Hard case included. Compatible - The 3.5 mm stereo jack gives a great compatibility. Comes with a 2 year limited warranty. Just contact us for any issue or question. Please find further information below.