1. Bluetooth 5.4; Chip: JL AC6983D4 2. Battery capacity: Charging case 300mAh, earphone 30mAh 3. Usage time: 4 hours 4. Size: 54 * 44.5 * 23.3mm; Total weight: 52.8g 5. Equipped with LED smart touch screen, multiple function settings can be operated directly from the charging box 6. The screen displays the current battery level and exact time of the earphones and charging case
