* CDLA standard and digital architecture has faster transmitting speed, better restore sound, bring you better sound quality.* Unique half ear design for proper distance from the eardrum, avoid hearing loss.* High-strength pure copper voice coil brings power bass sound. Stabilize low-frequency effect, provides with high quality music.* High-quality material is durable, smooth cable help you avoid tangle problem, prolong the service life.* With high-sensitivity mic, you can make phone call as you wish. With a button and a switch, it is easy to operate.