◆ Thank you for viewing! ◆ If anything catches your eye, we would appreciate it if you could press the "Like" button. We also accept price negotiations (we would like to make offers as well, so please contact us via comments), and discounts for combined purchases with other items we have for sale. Please feel free to contact us. All of our items are kept in good condition until they are removed from sale, even if they have been listed for a long time, so you can purchase any of them immediately. We will ship your purchase as soon as possible. We have many other items for sale, so please take a look. ◆ From the Manufacturer ◆ ● Further enhancing sound quality and ease of use Connect to various devices such as PCs and smartphones to experience the sound quality of Hi-Fi headphones and earphones more closely and easily. The BTD-600 Bluetooth dongle, developed by Sennheiser, an audio professional, maximizes the potential of wireless headphones and earphones, delivering high-quality sound wirelessly, just like wired ones. ● Producing high-quality sound The BTD-600 dongle supports aptX Adaptive and Bluetooth 5.2, providing high connectivity and stable, high-quality sound. ● Plug it in, connect, and you're done Connecting to a PC or MAC is surprisingly simple. Plug the USB dongle into the device you want to connect to, and pair it with your (wireless) headphones or earphones. ● Low latency for comfortable viewing of dramas and movies What's important when watching dramas, movies, and other videos is that the video and the audio of the dialogue and other sounds don't get out of sync. The BTD-600 dongle has low latency, so you can enjoy watching videos without stress. Of course, it also has low latency during calls, so you can clearly hear the other person's voice during online meetings. ◆ About the Condition ◆ There are scratches and scuffs from years of use, but it has been tested and is still in good working condition. ◆ From the Seller ◆ I am selling this because I have no opportunity to use it. I hope you will use it with care. Please note that we may remove the listing without notice. We will strive for a polite and prompt transaction until the end, so thank you for your consideration.