Behringer Closed Studio Monitoring Professional Headphones with Bluetooth HC2000B

【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. Closed studio monitoring professional headphones equipped with Bluetooth (Version 5.0). Equipped with a 40mm dynamic driver to achieve wide frequency response (20Hz – 20kHz). Equipped with a lithium-ion rechargeable battery that can playback for approximately 14 hours. Easily answer calls in privacy with the convenient built-in microphone. USB charging cable included (charger sold separately. Compatible with USB charger)