Goodsmile Headphone Over Ear with Anime Black Butler New design,adjustable width, ear hook that can rotate 360 degrees The Adjustable Headphone with good technology reduces noise and offer your perfect sound 3.5mm audio interface Computer Headphone is suitable for the iPhone / touch / ipad MP3, MP4, PC, MD, CD or any other player which has a 3.5mm jack Plastic ear hook provides a non-slip grip, and is adjustable and comfortable to wear