Wireless bone conduction headphones, offering a comfortable fit and sound quality. Includes a Type-C cable, earplugs, and a user manual. I've been using them for about two years, and they work without any problems. Erssimo bone conduction headphones use the latest proprietary bone conduction technology, delivering sound to the brain as vibrations through the bones! The first-time wearing experience of these bone conduction headphones is as light as a feather, weighing only 29g!! You can hear music without blocking your ears, so there's no pressure, and they're comfortable to wear for long periods! Furthermore, they have succeeded in reducing sound leakage by approximately 50% compared to conventional bone conduction headphones. In the city, outdoors, or in the office, you can enjoy music safely in any situation while protecting your ears! They also work well with glasses. If you're a beginner or don't like in-ear headphones, Erssimo bone conduction headphones are perfect for you! Thank you for viewing.