Sony WH-L600 Help Manual page 44

Help Guide
Digital Surround Headphone System
WH-L600
RF signal transmission area
The approximate RF signal transmission area from the processor to the headphones is up to 30 m (98 ft).
It varies depending on whether obstacles (human body, metal, wall, etc.) are present and the reception conditions.
Note
This system uses a signal in the 2.4 GHz frequency band, so the sound may be interrupted if the signal of this system is blocked
by an obstacle. This phenomenon is due to the characteristics of RF signals, and is not a malfunction.
The sound may be affected depending on the location and the conditions where the processor is installed. Use the processor and
the headphones in a place where you can hear the audio without interference.
The sound may be interrupted if you use the processor and the headphones in a location where other 2.4 GHz wireless devices,
for example, a microwave oven, etc., are used nearby.
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