Audio Technica SOLID BASS Inner Ear Headphones Black BK ATH-CKS770

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. Dual magnetic field driver. Two opposing magnets create the next fusion point to maximize magnetic force. The increasing magnetic force guides the powerful and precise drive of the large diameter driver, expressing a tight and rich low range. Multi-transition vibration version exclusively for deep bass reproduction. Disperse specific unnecessary resonance points through three-dimensional analysis. By maximizing the effective vibration area, we achieve deep bass reproduction that exceeds the driver diameter. Aero base bending system. Vent (air hole) is placed in the best position according to driver characteristics. Optimizes the air springiness inside the housing to improve bass output efficiency. Adopts a tough machined solid aluminum enclosure