KA15 has done a lot of work on battery saving, so you don't have to worry about the battery life of your phone at all.
KA15 comes with a power saving mode, when we pause the playback, it will automatically shut down some of the back stage circuits, and will enter the power saving mode automatically after 5s of no operation.
When we pause the playback and the KA15 screen is off, the KA15 will reset the DAC and make it enter a higher level of deep sleep mode.