Bobtot Sound Air1

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Powerful Sound & Deep Bass – Portable Bluetooth speaker provides immersive sound, an advanced digital signal processor, which pumps out crisp treble, detailed mids, and especially enhanced bass at any volume. Get incredible sound at home, in the yard, or anywhere else imaginable.
Enjoy Music Day Till Night – Built-in 3500mAh durable battery supports up to 25 hours of playtime per charge(70% volume), plays longer time on lower volume, actual playing time related to song type and volume. A portable lanyard let you easily take your music speaker wherever you go.