QKZ DM7 High-quality In-ear All-metal Sports Music Headphones, Basic Version

1. Ergonomic fit design The use of skin-friendly silicone 10% soft with antibacterial material softness and ear canal fit 2. TPE spiral wire durable More effctive anti-interference pull , 90 degrees bending , swing and other indicators are through the rigorous test , please feel free to use 3. Design of acoustic airflow cavity Shock the stereo bass lets you feel an auditory feast