1.Automatic pairing No manual operation required.Automatic pairing, self connection on power on. The first time you connect and pair success fully the next time you use it, it will automatically connect, convenient and fast. 2.Skin-friendly material Comfortable to wear.Ergonomic,fit the ear structure, skin-friendly material, not picking the ear canal, long Dong wear is also very comfortable. 3.Professional sound engineering technology.Fully compatible Unlimited connectivity.Support multiple apps, compatible with Android, Apple and Windows systems, and can be connected with Bluetooth.