● Built-in 8MM moving coil unit. High smoothness diaphragm can present cadenced sound and fully restore details. ● Earphone case is smooth and wearable. Black film texture and geometric acoustic chamber complement each other, which highlights different fashionable styles. ● The high-sensitivity microphone enables you to receive sound perfectly and enjoys high-definition calls. One-touch remote control allows you to switch songs/calls freely. ● Lightweight shape makes you comfortable to wear, so that you can listen to music for a long time.