Victor Headphone Surround Adapter (SU-DH1)

Headphone Surround Adapter (Main Unit) with Dolby Pro Logic II and DTS Support

- Brand: Victor
- Model: SU-DH1
- Function: Headphone Surround Adapter
- Connection Method: Audio Connection
- Surround Sound Formats: Dolby Pro Logic II, Dolby Headphone, DTS
- Requires 2 AA batteries (AC adapter not included)

Thank you for looking.
I purchased this for just under 10,000 yen in August 2008. At the time, I connected it to my audio system's wired jack to improve the sound quality of my wired headphones, and I also used it with my iPhone 6 and earlier models by connecting wired earphones to the iPhone. Since 2015, listening to music wirelessly has become the norm, and I kept it tucked away in a drawer for nearly 10 years, thinking I might use it again someday. However, I've decided to sell it now.
I have confirmed that it is in working order by inserting 2 AA batteries. As it has been used for many years, there are minor scuffs and the paint on the surface around the corners has faded. Please be aware of this in advance.
The instruction manual is not included. If you need it, please download it from the Victor HP below:
https://manuals.jvckenwood.com/download/SU-DH1_JA_JAJP_300B