[Immersive Sound Quality] Powered by powerful 16mm speaker driver unit and half in-ear acoustic structure, wireless earphones delivers fantastic sound beside your ear with mellow bass, clear treble. [Up to 16 Hours of Playtime] Bluetooth earbuds last 16 hours of playback time with one charge. Full music around you all-day long. [Born for Sports] Ergonomic design provides a comfortable and secure fit that doesn’t protrude from your ears especially for Sports, Workout, Gym. Equipped with 4 pairs of ear caps to ensure your running headphones fit comfortably and noise cancelling in ear. Just move as you want. [IPX7 Waterproof] Wireless headphones boast IPX7-rated protection that prevents ordinary splashing water and rain. (Please note: not for swimming) [Stable Bluetooth 5.3 Connection] Advanced Bluetooth 5.3 technology ensure a stable connectivity and high speed transmission, low signal loss when on phone call and listen to music.