Bluetooth fold up polarized sunglasses

Polaroid polarized lenses that provide the best protection for eyes. Free telescoping boom speakers, 270 rotatable, freely adjustable for comfortable wearing. Max volume 88db with a full sound bud. Built in lithium provides 15-20 hours of continual talking and Bluetooth standby time of 100 days. Suitable for various operating platform and potable with compact size. Item includes charger with port, manual, cleaning sheath, and sealable polyester / cloth sturdy bag. This item is a must have