1, Bluetooth 5.4, chip: JL AC6973
2. Battery capacity: 350 mAh charging case, 35 mAh earphones
3. Usage time: 6 hours
4. Dimensions: 54.5*51*26 mm; Total weight: 38.5 g
5. Open the cover and pull out the earbuds to turn on the earbuds, which support master-slave switching, song up and down switching, Siri summoning and other functions