Sound Quality: Excellent sound quality as a stereo bass headset, also is a 5.0 bluetooth headset, and suitable for all 3.5mm plug devices. Material: Made from silicone + plastic + electronic components. Wireless Headphones: Get a pair of pop it bubble wireless headphones. Adjustable: The adjustable strap allows you to perfectly fit your head shape. Convenient: The folding design is convenient to carry and can be easily put into any bag, take out for travel, plane, or car, this headset is a good companion. Design: The bubble design can be used as a decompression item. Pop It Bubble Wireless Headphones | Living Social