11. Overheating protection,Overload protection and DC protection of K7

The protection system will be triggered when the K7 is overloaded or overheating.

When the protection system is triggered, you would need to restart the K7 for help: you can restart the K7 via the volume knob or replug the power plug.

DC protection is to prevent problems with the K7 damage to the headphones. If it keeps triggering, the K7 may have hardware issue. Please contact the seller or support@fiio.com about that.