Introduction
This manual provides essential information for the safe and effective use of your cotsoco MA309 Handheld Mini Vibrating Body Massager. Please read this manual thoroughly before operating the device and retain it for future reference.

Image: The cotsoco MA309 Handheld Mini Vibrating Body Massager, a compact device with a white body and red accents on its three massage points.
Safety Information
The following safety guidelines are provided for your protection and to prevent damage to the device. While specific warnings were not detailed, general precautions for electronic massagers include:
- Do not use near water or in excessively damp environments.
- Discontinue use immediately if you experience pain, discomfort, or any adverse reactions.
- Consult a medical professional before use if you have pre-existing health conditions, such as heart problems, pacemakers, skin conditions, or are pregnant.
- Keep out of reach of children.
- Do not attempt to disassemble or repair the device yourself. Contact customer support for assistance.
- Use only the specified battery type (3 AAA batteries).
Package Contents
Upon opening the package, verify that all items are present and in good condition:
- 1 x cotsoco MA309 Mini Massager
- 1 x User Manual
- Note: 3 AAA batteries are required and not included.

Image: The cotsoco MA309 Mini Massager and its user manual, displayed next to the product packaging.
Setup
Follow these steps to install the batteries and prepare your massager for use:
- Open the Battery Compartment: Gently twist the top section of the massager to the right (counter-clockwise) to unlock and remove the cover.
- Insert Batteries: Insert 3 AAA batteries into the compartment, ensuring correct polarity (+/-) as indicated inside.
- Close the Compartment: Place the cover back onto the massager and twist it to the left (clockwise) until it clicks securely into place.

Image: A four-panel diagram illustrating how to open the massager, insert 3 AAA batteries, and close the compartment.
Note: If the massager does not activate, ensure the battery compartment cap is fully tightened. Some units may function even if the cap is not completely tight, but a secure fit is recommended for consistent operation.
Operating Instructions
The cotsoco MA309 massager is designed for simple, one-button operation:
- Power On: Press the power button located on the top of the massager. The device will begin vibrating, and the LED lights on the massage points will illuminate.
- Apply to Body: Gently press the vibrating massage points against the desired body area. The massager can be used on various parts of the body, including the neck, shoulders, back, arms, hands, and legs.
- Massage Technique: Move the massager in circular motions or along muscle lines to target areas of tension. Adjust pressure as needed for comfort.
- Power Off: Press the power button again to turn off the massager.

Image: A collage showing the cotsoco MA309 Mini Massager being used on the hand, head, neck, leg, and back for targeted relief.
The massager features built-in colorful LED lights, providing a unique visual experience during use. Its compact and cordless design makes it suitable for use at home, in the office, or while traveling.
Maintenance
To ensure the longevity and optimal performance of your cotsoco MA309 massager:
- Cleaning: Wipe the exterior of the massager with a soft, damp cloth. Do not use abrasive cleaners or immerse the device in water.
- Storage: Store the massager in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, remove the batteries to prevent leakage.
- Battery Replacement: Replace all three AAA batteries simultaneously when the vibration strength weakens or the device stops functioning.
Troubleshooting
If you encounter issues with your massager, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Massager does not turn on or vibrate. |
|
|
| Weak vibration. | Low battery power. | Replace all three AAA batteries. |
| LED lights not working. | Low battery power or internal issue. | Replace batteries. If problem persists, contact customer support. |
If the issue persists after attempting these solutions, please contact cotsoco customer support for further assistance.
Specifications
- Model Number: MA309
- Brand: cotsoco
- Power Source: 3 x AAA Batteries (not included)
- Material: Plastic
- Product Dimensions: 4 x 4 x 3.9 inches
- Item Weight: 6.56 ounces
- Features: Vibrating massage, LED light function, compact design
- Intended Use: Arm, Back, Body, Hands, Legs, Neck, Head, Shoulders

Image: A diagram showing the approximate dimensions of the cotsoco MA309 Mini Massager: 95mm height and 65mm width.
Warranty and Support
cotsoco is committed to providing quality products and customer satisfaction.
- Warranty: This product comes with a 2-year warranty.
- Returns: Enjoy 90-days free return.
- Customer Service: 24-hour VIP customer service is available for any inquiries or support needs.
For support, please visit the official cotsoco store or contact their customer service channels.
Visit the cotsoco Store

