2. More durable & tangle-free-- Zipper line bionic technology adopted, cable upgraded; Plus, it contains textile, so that the earphone is more durable and tangel-free than others.
3. Uni-ergonomic design-- In-ear design, and high quality audio cable, that you will not feel very uncomfortable even wearing long time.
4. High compatibility-- 3.5mm audio jack works with most phones and music devices.
5. Clear communication & Easier operation-- Built-in high performance microphone and answer key, noise reduction supported, and letting you communicate more clearly and operate easier.