Sennheiser Headphones Open Type HD 559 []

We offer a wide variety of products, and the following precautions apply to some of them. Please note that they are listed for all products. 【Voltage Compatibility】Designed for Japanese voltage (90-110V). Using with a different voltage may cause malfunction. 【Plug Type】Japanese plugs (A or B type). Use a conversion adapter if needed. 【Transformers & Adapters】Transformers adjust voltage; adapters only change plug shape. Using an adapter without a transformer may damage the product. 【Liability】We are not responsible for damages caused by improper use, such as using the product without a transformer. Model: Dynamic/Open type Frequency characteristics: 14 ~ 26,000 Hz Impedance: 50Ω Sensitivity: 108dB Cable: 3.0m (left side out), 6.3mm stereo standard plug (straight type) 2 years warranty Accessories: 3.0m stereo standard cable, conversion plug