1. Bluetooth 5.4; Chip: JL AC7003D4 2. Battery capacity: charging case 280 mAh, earbuds 30 mAh 3. Usage time: 4 hours 4. Material: ABS + zinc alloy; Dimensions: 60.6 * 45 * 25 mm; Total weight: 68.3 g 5. Support Hall Switch, noise reduction and transparency functions, and support sliding adjustment 6. Intelligent touch screen, various function settings can be operated directly from the charging case 7. The screen shows the current battery level and the exact time of the headset and charging case
