Great quality bluetooth headphones that can be used wirelessly or by using a standard 3.5 mm aux jack that is included in the package. You can also use an SD card to play your music from. Has a built in battery that is rechargeable and last a decent time before running out of juice and having to charge it back. Headphones are super lightweight and has a really nice foldable design for easy portability and storing. Soft earmuffs sits neatly on your ears and does not hurt when worn for too long. Sound quality is great with clear and crisp ay high volume without losing its quality.