Long-press the Power/Mode button for approximately 3 seconds. A prompt sound will play, and the display will activate.
Decreases the master audio output amplitude during Bluetooth, MP3, or AUX playback. Increases the master audio output amplitude. Core Operational Procedures 1. Device Initial Power and Charging
While the exact content varies by device type, a well‑structured Yayusi S2 manual usually includes: Yayusi S2 Manual Pdf
Short press to adjust volume. In clock mode, use these to set the time forward or backward.
Cycle through hours, minutes, and alarm settings by pushing the button followed by the Next/Forward Some variants may require holding the button to enter setting mode, then using to adjust time. Charging & Battery Voltage Requirement : Always use a 5V charger ; higher voltages can burn out the internal chip. Indicator Light solid red light Long-press the Power/Mode button for approximately 3 seconds
Connect the provided Micro-USB cable to a standard 5V/1A phone charger or computer USB port.
Turn on the speaker. You will hear a voice prompt indicating it is in Bluetooth mode. Increases the master audio output amplitude
Briefly press the M (Mode) button to cycle through the available modes: Time > Date > Alarm > Bluetooth > MP3 (TF/USB) > Line-In (AUX) > FM Radio . Bluetooth Pairing & Operations
Turn on the speaker; it defaults to Bluetooth mode (the "BT" icon will flash). Enable Bluetooth on your phone and select from the device list. Once connected, the "BT" icon will stay solid. 2. Setting the Time Short press the button to enter time-setting mode. The hour digits will flash. Use to adjust. again to switch to minutes; adjust with once more to save. 3. Setting Alarms (Alarm 1 & 2) Double-click to enter Alarm 1 setting (the alarm icon will flash). to set the time. Short press the button while in alarm mode to toggle the alarm Repeat for Alarm 2 by pressing 4. FM Radio Mode
The internal battery may be completely drained. Keep the unit connected to continuous USB power if you intend to use it primarily as a stationary bedside alarm clock. FM Radio Only Produces Static Noise
Short press the button until the voice prompt indicates "Radio Mode."