These Bluetooth Sunglasses are adult-sized and made of polycarbonate plastic and are packed with bonus extra fun wireless speakers in the side temples. Each pair comes packed in ABS+AS Plastic case. Device must be charged prior to first use. Minimum charging time is 2 hours, and you will enjoy Approximately 3 hours play time. Lenses feature anti ultraviolet protection level 380nm. Includes USB to micro USB charging cable. Case measures 6.5″w x 2.6″h x 2″d. Production times may vary due to imprint method.