1. Bluetooth: V5.3 JL7003D4
2. Battery capacity: 320mAh for charging case, 35mAh for earphones
3. Use time: 6 hours, noise reduction: 30-35dB
4. Speaker: 13mm
5. Size: 62*48*26mm, Weight: 47g
6. Support ANC active noise reduction + ENC dual-mark call noise reduction