A red light usually appears while charging and turns off (or changes color) when fully charged. Battery Life:
Ensure there are no physical obstacles like thick walls or heavy metal structures between the devices.
Before initial use, charge the speaker completely using the included USB cable. Yayusi S2 Manual Pdf
A prompt will sound, and the blue indicator light will stop flashing once connected.
The is your machine’s bible. It is the difference between a frustrating brick and a precision tool that lasts for years. Do not rely on random YouTube videos that skip steps. Download the official file from the manufacturer, keep a printed backup in your shop, and use the search function to solve problems in seconds. A red light usually appears while charging and
Bluetooth, TF/MicroSD Card, AUX (3.5mm), FM Radio, Hands-free Calling Control Panel and Button Functions
If the device freezes, turn it off and on, or charge it to reset the internal system. 5. Summary Table of Operations Power On/Off Long Press Power Button Mode Switching Short Press 'M' Button Play/Pause/Scan Short Press Play Button Volume Up/Down Short Press Vol+/Vol- Previous/Next Station Long Press Vol+/Vol- (in FM mode) A prompt will sound, and the blue indicator
: Keep the speaker on a stable surface to prevent accidental drops. Environment
: After setting the time, use the forward/backward buttons to choose between built-in rings (L-1 to L-5) or music from a TF card. Music and Display Control Yayusi S2 Bluetooth Speaker User Manual - device.report
: It takes approximately 4 hours for a full charge, providing 5–6 hours of playback at maximum volume or 8–12 hours at default volume. In clock-only mode, the standby time is roughly 60–80 hours.
Long press the button to begin the auto-scanning process. The device will automatically save all clear radio stations.