M1s Firmware Update_Shenzhen Shanling Digital Techno
Changes and fixes:

1. Added Playback controls to Bluetooth receiver mode.
2. Added options to switch between LDAC quality settings
3. Added new screensaver.
4. Optimized touch sensitivity of UI.
5. Optimized scrolling speed in the menus.
6. Fixed issue that sometimes caused card not to be visible.
7. Optimized Wi-Fi Performance.
8. Fixed issues causing occasional playback crash.
9. Other fixes and improvements.
流石に修正点が多いね

そういえば流通はAoshida Audioが一括して扱うそうですよ
Amazonでよく見かけるね
Shanling M1s - Ideal Compact Portable Player | Page 22 | Headphone Reviews and Discussion - Head-Fi.org