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【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
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Traditional KOSS Porta Pro sound with powerful bass characteristics
Go hands-free at home or in the office with a flexible electret boom microphone
3.5mm 4-pole mini plug allows easy connection to a computer or tablet
Foldable headband design allows for storage and portability
Headband side pressure can be adjusted to 3 levels with Comfort Zone mechanism
