1. 2 in 1 for Type-C device adapter (charging + listening to songs). 2. Small and portable / stable distinction / good sound quality. 3. Built-in decoding chip, fast identification / stable charging. 4. Good material, good surface treatment quality and more durable. 5. Small and portable, plug and play. 6. Note: Huawei Mate 9, Huawei Mate 10, Mi Note 2, Mi Max 2 are not applicable.