Sennheiser Headphones Wired HD 620S Black Sealed Over Ear High Performance Transducer Acoustic Foam Ultra Light Voice Coil []

------------------------------------------------------------------------------------------------------------------ 【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. ------------------------------------------------------------------------------------------------------------------ When conventional wisdom changes: Natural and expansive sound stage despite being a closed type Closed headphones that combine the DNA of the HD 600 series and HD 500 series Reference level high quality Sennheiser 42mm transducer manufactured in our Irish factory. Flexible diaphragm using HD 660S2 technology Acoustic foam is placed on the back plate on the back of the driver to absorb sound reflections and create a purity of sound that is often lost with closed models.