The maximum battery runtime of the AVENTHO 300 was tested in the beyerdynamic labs and is up to 60 hours.
The battery runtime of the AVENTHO 300 depends on the options actually used (e.g. EQ, ANC, selected codec, Dolby Atmos®, Dolby Head Tracking™) and the current volume.
If all options are switched on at high volume, the runtime is 35 hours, as stated on the packaging.
At lower volume (80 dB) and fewer options, a runtime of up to 50 hours (with ANC) and up to 60 hours (without ANC) can be achieved.