M*i様 Teenage Engineering [Rare Unreleased] Stem Player

Product Name:
YZY 2019 OG Unreleased Stem Player by Teenage Engineering

Demo Video:
https://www.youtube.com/shorts/19OfQzrqUKM

User Guide:
https://www.reddit.com/r/teenageengineering/comments/192aipo/teenage_engineering_stem_player_user_guide/

This product is a prototype device that allows for the playback and manipulation of stem audio, created in a collaboration between Teenage Engineering and Kanye West in 2019.
It is said to have been produced in very limited quantities and is an extremely rare unreleased model, with no record of general sales by either Teenage Engineering or Kanye West.

Stem audio from the 2019 album Jesus Is King is included as presets.

Main Functions (as confirmed):
- Play/Pause
- Fast Forward/Rewind
- Volume adjustment/Mute for each stem (track)
- Playback speed adjustment
- Looper function
- Built-in speaker
- Headphone output
- Effects processing per track
(Filter, Chorus, Delay, Distortion, Gate, etc.)
[Other Functions]
Bluetooth connection
MIDI sync
*Bluetooth connection has been confirmed with my own speaker (OB-4), but connection to other devices and MIDI sync are unconfirmed. Please understand that as this is a prototype, operation cannot be guaranteed.

[Firmware]
The current official firmware does not support adding songs or recording functions.
Research into custom firmware by enthusiasts appears to be ongoing, but future developments are uncertain, and there is no guarantee of future functional additions at this time.

[Condition and Accessories]
- Main unit (tested a few times only. No noticeable scratches, but please refrain from bidding if you are extremely concerned about condition.)
- USB-C cable (unused)

[Shipping]
Shipping will be after January 4th due to returning home for the New Year holidays. Thank you for your understanding.