Sony MDR-DS6500 User Manual

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Preparation
The headphones contain a rechargeable Lithium-Ion battery.
Be sure to charge it before using for the first time.
To charge the headphones, place them on the processor.
Connect the supplied AC power adaptor to the processor. 
To an AC outlet
AC power 
adaptor 
(supplied)
To DC IN 6V jack
Processor
Notes
Be sure to use the supplied AC power adaptor. Using AC adaptors with different plug polarity or 
other characteristics can cause product failure.
Unified polarity plug
Be sure to always use the supplied AC power adaptor. Even AC power adaptors having the same 
voltage and plug polarity can damage this product due to the current capacity or other factors.
Connect the AC power adaptor to an easily accessible AC outlet. Should you notice an abnormality 
in the AC power adaptor, disconnect it from the AC outlet immediately.
Charging the Headphones