Adopt a non-in-the-ear design, allowing you to sense ambient sounds at all times. 2. Liquid silicone molding process, delicate and elastic to touch, non-slip and stable. 3. Ear-hook structure makes it more stable and suitable to wear. 4. Ergonomic design, golden three-point design, comfortable to wear. 5. Built-in 16mm full-range speaker, stereo sound quality. 6. Parameters: Material: PC+ABS Version: AB1562M V5.3 (Loda) Distance: greater than or equal to 10M (depending on mobile phone functions) Single listening time: about 5H (80% volume) Total listening time: about 20H + charging box capacity Headphone battery capacity: DC 3.7V/50mAhx2 Charging box battery capacity: DC 3.7V/300mAh Wired charging time: charging about 1.5H