Features: 1. Adopting ear clip design and innovative healthy and comfortable design concept, there is no need to enter the ear and ear size is not selected. 2. 10MM dynamic drive unit, combined with advanced audio processing technology, perfect cavity structure. Presents a low pitched, bright, mid pitched, and clear HiFi sound quality. 3. Directional sound transmission technology, with built-in leak proof filter element, can block the ears side by side to prevent sound leakage, protecting privacy. 4. Both left and right ears can be worn, and the left and right ears can be freely converted for wearing. This thoughtful design is only designed to meet your usage needs. 5. Strong battery life, good music, non-stop, 15 hours of music time/10 hours of talk time/2 hours of earphone fast charging. 6. Life waterproof, precise sealing, combined with nano waterproof treatment. Let you enjoy selfless exercise anytime and anywhere. Endlessly extending the lifespan of headphones. 7. Rich touch controls, no need to take out your phone to adjust the volume or answer calls, multifunctional one touch access.