17. If Q15 wants to enter super big-ear mode, what are the adapter requirements?

Q15 supports PD fast charging and QC3.0 fast charging handshake protocol, and will automatically identify the 5V gear or 9V gear.

It is not recommended to use an adapter without PD and QC3.0 protocols and with a fixed output exceeding 9V for long periods of time.

You can directly use an adapter with a stable output at 9V for long-term use.