For AirPods 3 Wireless Earphones Protective Case(Blue) Filter-Hard Drive Bags & Cases just set the running length

just set the running length and running time

Single chip USB3

New appearance design

Power Power Source Sony NP-F series or YN550 battery (not included)

40HQ: 1209 cartons * 400 pcs = 483600 pcs

For AirPods 3 Wireless Earphones Protective Case(Blue) Filter-Hard Drive Bags & Cases just set the running length1. MaterialTPU + PC 2. Total protection: it protects your earphones from dust, scratches, and external shocks. 3. Convenient charging: It retains the charging port, you can charge the earphone without removing the case, and use all functions easily. 4. Firm and convenient: safety lock makes the headphone cover firm and not easy to fall off. 5. Personalized design, fashionable and beautiful. 6. Equipped with a ring: so that you can carry the earphone