Review on UE ROLL 2 Volcano Wireless Portable Bluetooth Speaker (Waterproof) by Cathy Blount

Advantages Easy to pack; durable, decent sound quality (true, mono); holds a charge for a long time, receives a signal at a distance of 20-30 feet, remains waterproof after an accidental drop (yes) to a depth of 15 feet (total immersion < 3 minutes); The built-in bungee cord works great. The disadvantages can sound a bit tinny in the highs and washed out in the bass. The stereo system in iOS 10 requires two speakers connected via app. Connecting the USB charging cable to the socket is a little awkward. A watertight flap can be easily damaged by sand - make sure there is no dirt/sand in the groove and make sure the flap is installed properly to ensure watertightness, like my friend did the hard way found out. , multiple mounting options, good sound reproduction considering the small and flat form factor. Happy with the purchase.