Sony MDR DS4000 Manual

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3

Press the button of the left housing to
open the battery compartment lid.
This battery case is for the rechargeable
nickel-metal hydride batteries (supplied)
or commercially available (size AAA)
alkaline batteries only.

4

There are infrared sensors in two
locations on both sides.

5

The headphones automatically turn on
when you put them on.

6

Use to adjust the volume.

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8

By pulling up the self-adjusting band, the
indicator lights red when battery power is
sufficient.