1. Bluetooth 5.4; Chip: Jerry AC7003D4
2. Battery capacity: 400mAh for charging case; 40mAh for earphones
3. Use time: 7 hours (6 hours with ANC on)
4. Dimensions: 64.5 x 52 x 31mm; Total weight: 60.3g
5. Supports ANC+ENC noise reduction, master-slave switching, and Siri calling