ROCK LIGHT S137 Bluetooth Speaker
User Manual
Panel Functions
"-" (Minus Button)
Press and hold: Decrease volume
Press: Previous song
"+" (Plus Button)
Press and hold: Increase volume
Press: Next song
Light Button
Press: Change light mode
Press and hold: Turn light ON/OFF
Play/Pause Button
Music Mode:
Press: Pause/Play music
Press and hold: Switch function modes
Double press: TWS pairing (in Mode Only)
Phone Calls:
Press: Answer/End call
Press and hold: Decline incoming call
Double press: Call back (in Mode Only)
External Jack Functions
Power Switch: ON/OFF
DC 5V: External DC 5V power supply
USB/TF: Supports USB Disk / TF Card playback
Charging Instructions
Plug in the charging cable – the charging indicator lights up.
Turn OFF the speaker while charging.
Charging time: Up to 4 hours for a full charge.
Recommended charging current: 500mA (to protect the battery).
If the built-in battery is damaged, keep it plugged in for power.
Auto-Off Timer
To conserve battery, the speaker automatically turns off after 10 minutes of inactivity (when no audio is playing and no buttons are pressed).
Troubleshooting
No Power?
Check if the power switch is set to ON.
Try charging the speaker for a while.
No Sound?
Turn on the speaker.
Increase volume on the speaker, your mobile device, and your music source.
Move closer to the speaker and away from interference or obstructions.
Poor Sound Quality?
Try using a different music source.
Pair with another mobile device.
Reduce interference by moving your device closer to the speaker.
Cautions
Do NOT connect an external amplifier to the speaker, as it may cause damage.
Avoid direct sunlight, rain, dust, or hot/damp environments for prolonged periods.
Do NOT open the speaker's internal components – risk of electric shock and voiding warranty.
Do NOT place liquids on the speaker.
If unused for over 1 month, charge before using.
ROCK LIGHT – Brighten Your Life!
Model: S137
This version is clear, structured, and easy to read! Hope this helps 😊 Let me know if you need any modifications! 🎵 🔊