The speaker will automatically power down after 10 minutes of inactivity to save its 1800mAh battery.

Check the title page. If the manual says "Yayusi S2 Series," it covers the base model, Pro, and Plus. If it says "Yayusi S2 (Standard Only)," it does not. The Plus model has a different mainboard (often a 32-bit board vs. 8-bit on the standard).

Manual Pdf: Yayusi S2

The speaker will automatically power down after 10 minutes of inactivity to save its 1800mAh battery.

Check the title page. If the manual says "Yayusi S2 Series," it covers the base model, Pro, and Plus. If it says "Yayusi S2 (Standard Only)," it does not. The Plus model has a different mainboard (often a 32-bit board vs. 8-bit on the standard).