Sony MDR-DS6500 Operating Instructions Manual page 20

8
When you finished using the headphones, turn off the processor.
Press the  /  button on the processor to turn off the main power.
9
Place the headphones on the processor for charging.
Notes
When watching films, be careful not to raise the volume too high in quiet scenes. You may hurt
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your ears when a loud scene is played.
You may hear some noise when you disconnect the AC power adaptor from the processor before
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removing the headphones.
Transition time between modes
When sliding switches on the processor to change to new modes, the transition time between
modes may vary. This is due to differences in system control between modes.
The power turns off automatically when you place the headphones on the processor
Charging will start automatically.
If a beep sound is heard from the headphones
A repeated beep sound is heard if the processor is not turned on or if the headphones are
outside the RF signal transmission area. If you hear a beep sound, turn the processor on or
move closer to the processor and use the headphones in the RF signal transmission area. If the
beep sound does not stop even after turning the processor on or moving closer to the processor,
the cause is likely to be interference from, for example, another wireless device using the 2.4
GHz wireless frequency band or electromagnetic waves generated from a microwave oven. Try
taking the following measures.
Place the processor away from a device that generates electromagnet waves such as in a
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location in which a wireless LAN or other wireless device or microwave oven is used.
Point the antenna of the headphones towards the antenna of the processor's direction, and
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make sure the signal is not blocked by any obstacles (page 21).
Change the installation location or position of the antenna of the processor, and move to a
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location in which sound can be heard from the headphones.
Install the processor outside of a rack, do not install it at the back of a rack.
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Install the processor in a location where no metal is present, do not install it on a metal table.
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Move the processor and headphones as close as possible to each other.
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Operation