Sennheiser Closed Headphones HD 820 Flagship

【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. Featuring a unique glass transducer cover that minimizes resonance, the HD 820 is a closed-back headphone that delivers clear sound, pushing the boundaries of sound reproduction that closed-back headphones have built to date. The unique glass transducer cover minimizes echoes, delivering incredibly transparent sound. Adopts a robust metal headband with built-in inner damper, silver-clad OFC cable, and gold-plated plug. The ear pads are handcrafted from high quality non-allergenic synthetic leather. Model: Dynamic, sealed type Frequency characteristics: 12~43,800Hz (-3dB), 6~48,000Hz (-10dB) Cable length 3.0m: 6.35mm stereo standard plug (unbalanced), 4.4mm pentagon (balanced) Manufacturer's warranty period: 2 years (for new domestic regular purchases)