"1. Bluetooth; 5.3, chip: JL7023; Bluetooth pairing name: JKD-YF
2. Battery capacity: charging compartment 250mAh; headset 30mAh;
3. Headphone music duration; about 5 hours; supports master-slave switching and summoning Siri;
4. Product size: 49*56*14mm; Product weight: 45g;
5. Bluetooth 5.3, fast connection and low power consumption
6. Semi-in-ear design, 13mm large dynamic coil, better sound quality
7. Lightweight design, open magnetic absorption"
