U Boost Bluetooth Speaker Size:40 Its upgraded Thermo Gill™ vents

Its upgraded Thermo Gill™ vents feature a new multistage zipper system that dramatically increases the usable temperature range of the bag and allows for fine-tuning of comfort from within

Optimal Storage Temperature from –4°F to +158°F ( –20°C to +70°C )

It brings all the benefits of bent shaft technology at a fraction of the cost

and a hidden sunglasses cleaner in the hem

Designed using just a single material family

U Boost Bluetooth Speaker Size:40 Its upgraded Thermo Gill™ ventsThe U Boost speaker boasts enhanced sound technology and a perfectly balanced subwoofer, making it extraordinary in performance. Meet the U Boost: palm sized and ready to go! Pair 2 U Boost speakers for an incredible surround sound experience. Rated IPX4 water resistant. Selfie Remote Control Bluetooth Pairing Extra Bass Water Resistant Pair & Sync with other U Boost Speakers