Sony Wireless Digital Surround Headphone Black 9.1ch System, Closed-Back, MDR-HW700DS,

【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. Accessories: AC adapter, optical digital connection cable (1.5m), micro USB charging cable (1.5m), instruction manual Type: Closed dynamic type Driver unit: 50mm dome type *2 Magnet: Neodymium magnet Frequency response: 5Hz-25,000Hz Impedance: 24 Ω (1KHz) Power supply: Built-in lithium-ion rechargeable battery (DC 3.7V) Charging method: USB charging