Up to Date - Bluetooth 4.0. Portable - The rechargeable 2000 mAh lithium polymer battery brings up to 12 hours playback time, everywhere! Comes with a hard case for perfect protection. Enjoyable Sound - The unexpected powerful sound not only beats your laptop, Smartphone or tablet speakers. Compatible - Great compatibility to all Bluetooth devices such as Smartphones, tablets and laptops. Comes with a 2 year limited warranty. Just contact us for any issue or question. Please find further information below.