Ugreen 60700 Friendly In- Line Control. Quickly Answer/Rejects Calls and Play/Pause Music 13.6mm Dynamic Speaker. Excellent Hight, Deep Bass Tri-Band Connection Perfomance, Offer The Feeling Of Being On The Scene Crisp Clear Calls. Mems- Microphone Effectively achieves noise-reduction and makes calls clearer Ergonomic Comfort. Comfortable to wear, No Pain When Wearing For a Long Time