Using 14 mm composite diaphragm Provides effective Anti distortion Clear sound, and powerful bass sound Cable wire made by woven It is denser and more elastic, making the cable more durable In-Ear Design Comfortable and painless when used for a long time Equipped with multifunction button Just one button to play and pause music Just one button pick up and hang up the phone Can be used for various devices with 3.5 audio jack interface Such as MP3, Smartphone, Tablet, Computer