The Yesido YSP17 Open Wireless Bluetooth Earphone offers a unique non-in-ear design, allowing you to stay aware of your surroundings while enjoying stereo sound quality. Featuring a liquid silicone molding process, the earphones provide a soft, elastic, and non-slip feel, ensuring comfort during long wear. The ergonomic ear-hook structure makes it a secure and stable fit for various activities, while the built-in 16mm full-range speaker delivers clear, rich sound. With up to 15 hours of total listening time, it’s an ideal choice for all-day use. Specifications Brand: Yesido Model: YSP17 OWS Open Wireless Bluetooth Earphone Material: PC+ABS Bluetooth Version: AB5656C2 V5.3 (Lanxun) Bluetooth Distance: ≥10 meters (depending on mobile phone functions) Single Listening Time: About 4 hours (at 80% volume) Total Listening Time: About 15 hours (with charging box capacity) Headphone Battery Capacity: DC 3.7V / 35mAh x2 Charging Box Battery Capacity: DC 3.7V / 400mAh Speaker Size: 12mm Charging Time: About 1–1.5 hours (wired) Key Features Non-in-ear open design for ambient sound awareness Soft and elastic liquid silicone molding process for comfortable touch and stability Ergonomic ear-hook structure ensures a secure fit Built-in 16mm full-range speaker for rich stereo sound quality Long listening time with 4 hours per earbud and up to 15 hours total with the charging box Fast wired charging in about 1 to 1.5 hours