ATH-M20xBT Wireless Headphones with Bluetooth Connection. - Brand: audio-technica - Model Name: ATH-M20xBT - Connection Type: Bluetooth - Accessories: USB cable, Instruction manual Series cumulative sales exceed 2 million units. Experience world-renowned audio performance wirelessly. Lightweight over-ear model designed for ease of use. As an entry-level model in the M-series, the professional monitor headphones ATH-M20x are highly regarded in studios worldwide. The studio sound with a long history is now portable. The φ40mm driver, which reproduces powerful bass with a wide frequency range and flat characteristics, provides the same sound quality as the wired model ATH-M20x wirelessly. In addition, it features a multi-point function that allows connection to two wireless devices simultaneously, a low-latency mode that minimizes audio-visual lag for smooth gaming and video enjoyment, and ease of use features such as up to 60 hours of continuous use and a 10-minute quick charge for up to 3 hours of use. A microphone and buttons are built into the left earcup, allowing for intuitive control of calls, music playback, volume adjustment, and more. Enjoy the world-renowned studio monitor audio performance more freely and comfortably. <Specifications> Communication System: Bluetooth standard Ver. 5.0 compliant Supported Codec: AAC, SBC Type: Sealed dynamic type Driver: φ40mm Output Sound Pressure Level: 100dB/mW Usable Time: Continuous communication (during music playback) Approximately 60 hours (Varies depending on usage conditions.) Accessories: Charging USB cable (30cm, USB Type-A/USB Type-C), Instruction manual and other documents ★Product Condition★ Used item. Used for a few days after being purchased new. Operation has been confirmed. The main unit has no noticeable scratches and is in beautiful condition. All items are as shown in the photos. Purchase certificate is not included. Please refrain from purchasing if you are concerned about minor imperfections, as this is a used item.