Sony MDR-DS6500 (помощь)⁠⁠

Это как я понимаю, сделано?

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
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
make sure the signal is not blocked by any obstacles (page 22).
Change the installation location or position of the antenna of the processor, and move to a
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.
Install the processor in a location where no metal is present, do not install it on a metal table.
Move the processor and headphones as close as possible to each other.