Introduction
The Mesqool White Noise Sound Machine is designed to create a peaceful environment for sleep, focus, meditation, or calming babies. It features 24 high-fidelity natural sounds, customizable timer settings, and convenient power options, including battery operation for portability and USB charging ports for external devices.

Figure 1: Front view of the Mesqool White Noise Sound Machine.
Setup
Powering the Device
- AC Adapter: Connect the included AC adapter to the 5V DC IN port on the back of the sound machine and plug it into a standard wall outlet. This is recommended for continuous use and enables the USB charging ports.
- Battery Operation: For portable use, insert 3 AA batteries (not included) into the battery compartment. Ensure correct polarity. Battery life varies with volume level (e.g., 38 hours at 10% volume, 14 hours at 100% volume).

Figure 2: Rear view of the sound machine, highlighting the 5V DC IN port, headphone jack, and 5V 1A USB charging ports.
Initial Placement
Place the sound machine on a stable, flat surface away from direct sunlight, heat sources, and moisture. For optimal sound dispersion, ensure the speaker is not obstructed.
Operating Instructions
Turning On/Off and Volume Control
Rotate the OFF/Volume knob clockwise to turn on the device and increase the volume. Rotate counter-clockwise to decrease the volume and turn off the device. The volume can be adjusted from 0 to 99 dB.
Sound Selection
The sound machine offers 24 soothing sounds across 8 categories. Press the dedicated buttons on the front panel to select your desired sound:
- White Noise: 3 variations of white noise.
- Fan: 3 variations of fan noise.
- Ocean: 3 variations of ocean sounds (ocean waves, waves, midnight surf).
- Bird Chirping: 3 variations (singing, relaxation, chirping).
- Water Stream: 3 variations (forest brook, snowstream, streamside).
- Summer Night: 3 variations (daybreak, crickets, sleepy jungle).
- Thunder & Rain: 3 variations (rain, thunder & rain, thunder).
- Forest: 3 variations (dream forest, winter wilderness, rainforest).
The memory function will recall your last selected sound and volume settings when the device is turned back on.

Figure 3: Overview of the 24 high-fidelity soothing sounds available.
Timer Function
Press the TIMER button to set an auto-off timer. Available options are 15, 30, or 60 minutes. The device will automatically turn off after the selected duration. To play continuously, do not select a timer setting.
Headphone Jack
For private listening, plug any standard 3.5mm headphones into the headphone jack located on the back of the unit.
USB Charging Ports
The sound machine is equipped with two 5V 1A USB charging ports. These ports can be used to conveniently charge your mobile devices (e.g., smartphones, tablets) when the sound machine is powered via the AC adapter.

Figure 4: The sound machine's USB ports can charge other devices.
Maintenance
- Cleaning: Wipe the surface of the sound machine with a soft, dry cloth. Do not use liquid cleaners or abrasive chemicals.
- Storage: When not in use for extended periods, store the device in a cool, dry place. Remove batteries if storing for more than a few weeks to prevent leakage.
- Handling: Handle the device with care. Avoid dropping it or exposing it to extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
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| No sound/Device not turning on |
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| Sound quality is poor or distorted |
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| Device turns off unexpectedly |
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| USB charging ports not working |
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Specifications
| Feature | Detail |
|---|---|
| Model | B07K3WVXMV (Sliver) |
| Material | Plastic (ABS) |
| Product Dimensions | 6.3 x 5.05 x 1.85 inches |
| Item Weight | 10.86 ounces |
| Sound Count | 24 Soothing Sounds (8 categories) |
| Volume Control | 0-99 dB adjustable |
| Timer Options | 15, 30, 60 minutes, or Continuous Play |
| Power Source | AC Adapter (included) or 3 AA Batteries (not included) |
| USB Output | 2 x 5V 1A USB Charging Ports |
| Headphone Jack | 3.5mm |
Safety Information
Please read all safety information before using the product.
- Caution: This product contains small parts and is not a toy. Keep out of reach of children.
- Battery Use: Use only approved batteries and handle with care to avoid risk of electric shock.
- Noise Exposure: Excessive use of this product at high volumes may cause noise exposure, which can be harmful. Follow manufacturer instructions for safe use.
- Placement: Do not place the device near water or in excessively humid environments.
- Ventilation: Ensure proper ventilation around the device. Do not cover the speaker or vents.
Warranty and Support
Mesqool provides the following support for your sound machine:
- Warranty: 1-year warranty from the date of purchase.
- Return Policy: 30-day return policy.
- Customer Service: 24-hour customer service is available to assist with any inquiries or issues. Please refer to your product packaging or the Mesqool official website for contact details.





