Normal usage:
1. Use the volume of a normal listening tone for a third of the volume of the headset for 12 hours to 24 hours
2. Use two thirds of normal listening tone to drive the headset for 12 hours
3. Use normal listening strength to drive the headset for 72 hours
4. Use three-fourths of the normal listening tone to drive the headset for 24 hours
5. Enter normal use stage
6. At normal use, the volume will not be too high at the maximum volume of two thirds
Take your headphones off while you sleep and avoid making them bad
These are some of the advice of the machine, and you can make your own love machine according to your own needs.
Headphones use little common sense: new headphones don't get full power right away, don't turn the volume up to the maximum, otherwise it's easy to damage headphones