Model: A3213H11; Soundcore Life U2i Wireless Headphones, Black Superior Audio Quality: Larger 10 mm drivers with a bio-cellulose diaphragm produce a rich, detailed treble sound. Neckerchief Bluetooth headphones feature a titanium alloy steel core and a lightweight silicone neckband for optimal shape retention and a secure fit around your shoulders. IPX5 Waterproof: The Life U2i neckband Bluetooth headphones are shielded from rain, water, and other elements by a waterproof casing. Ideal for Exercise: The ergonomic Since silicone is used to make earbuds, they are supple, secure, and comfortable. Ideal for using when jogging, running, or working out Design with ergonomics: cozy You can listen to music on the go thanks to the ergonomic in-ear design and soft silicone sweat-proof ear tips that block out outside noise. Enchantment Attraction of Magnets Technology: Gently absorbs or separates