1. Product Overview
The OTEEIDA MY-375 Electric Wearable Breast Pump is designed for convenient and efficient milk expression. This manual provides essential information for safe and effective use of your breast pump.

Image: Two OTEEIDA MY-375 wearable breast pumps with their packaging.
This wearable breast pump offers a discreet and hands-free pumping experience, allowing users to maintain their daily activities while expressing milk. Its compact and lightweight design (approximately 240g per pump) ensures comfort and portability.

Image: A woman demonstrating the discreet fit of the 240g wearable breast pump.
2. What's in the Box
Please check the contents of your package against the list below to ensure all components are present.

Image: Detailed diagram of all included components.
- Pump Motor * 2
- Silicone Diaphragm * 2
- Connector * 2
- Duckbill Valve * 4
- Milk Collector * 2
- 17mm Flange Insert * 2
- 21mm Flange Insert * 2
- 19mm Flange Insert * 2
- Silicone Plug * 4
- Bra Adjustment Buckles * 2
- Breastmilk Storage Bag * 10
- USB Type-C Cable * 2
- Nipple Ruler * 1
- User Manual * 1
- 24mm Flange * 2
3. Assembly and Setup
Follow these steps to assemble your OTEEIDA MY-375 breast pump before first use. Ensure all parts are clean and dry.

Image: Step-by-step assembly instructions.
- Place the silicone diaphragm into the connector.
- Install the duckbill valve onto the connector.
- Place the assembled breast pump connector into the milk collector.
- Gently push the flange into the milk collector without any gaps.
- Insert the silicone plug into the milk collector so that the surface is flush without any gaps.
- Assemble the pump motor and milk collector without gaps.
The pump features an anti-backflow design, is BPA-free, skin-friendly, and made from food-grade silicone. It has a 7oz/210ml capacity.

Image: Key features of the breast pump components.
4. Operating Instructions
The OTEEIDA MY-375 breast pump offers multiple modes and suction levels for personalized comfort and efficiency.
4.1 Modes and Levels
The pump features 4 distinct modes and 12 adjustable suction levels:
- Massage Mode: Designed to stimulate milk let-down.
- Frequency Conversion Mode: Alternates suction patterns for effective expression.
- Breast Pumping Mode: Standard expression mode.
- Automatic Mode: Combines different modes for optimal pumping.

Image: Overview of the pump's 4 modes and 12 suction levels.
4.2 Suction Power
Equipped with a 2nd generation motor, the MY-375 provides strong suction up to 350mmHg, comparable to hospital-grade pumps, to help maximize milk output.

Image: Suction power comparison, highlighting 350mmHg for MY-375.
4.3 Quiet Operation
The pump operates at a low noise level (below 40dB), ensuring a quiet environment for both the user and the baby.

Image: Illustration of the pump's quiet operation, allowing a baby to sleep peacefully.
5. Flange Sizing
Selecting the correct flange size is crucial for comfortable and effective pumping. Use the included nipple ruler to measure your nipple diameter and choose the appropriate flange insert.

Image: Guide for selecting the correct flange size using inserts.
The pump comes with a 24mm flange and includes inserts for 17mm, 19mm, and 21mm to accommodate various nipple sizes.
6. Maintenance and Care
Proper cleaning and maintenance are essential for hygiene and longevity of your breast pump. Disassemble all parts that come into contact with milk immediately after each use.
6.1 Cleaning
- Wash all milk-contacting parts (flanges, connectors, valves, milk collectors) with warm soapy water.
- Rinse thoroughly with clean water.
- Air dry on a clean surface or use a dedicated drying rack.
- Do not wash the pump motor. Wipe it with a clean, damp cloth if necessary.
6.2 Sterilization
Sterilize milk-contacting parts regularly according to manufacturer guidelines. This can typically be done by boiling for 5 minutes, using a steam sterilizer, or a dishwasher (top rack only, if compatible).
6.3 Charging
The pump is rechargeable via a USB Type-C cable. Ensure the pump is fully charged before use for optimal performance.

Image: USB Type-C charging port.
7. Troubleshooting
If you encounter issues with your OTEEIDA MY-375 breast pump, please refer to the following common troubleshooting tips:
- No Suction or Weak Suction:
- Check that all pump components are correctly assembled and sealed tightly.
- Ensure the duckbill valve is clean and not damaged. Replace if necessary.
- Verify the silicone diaphragm is properly seated and free from tears.
- Confirm the pump motor is fully charged.
- Pump Not Turning On:
- Ensure the pump is fully charged.
- Press and hold the power button for a few seconds.
- Discomfort During Pumping:
- Check your flange size. An incorrect size can cause discomfort and reduce milk output. Refer to Section 5 for guidance.
- Adjust the suction level and mode to a comfortable setting. Start with a lower setting and gradually increase.
If problems persist, please contact customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | OTEEIDA |
| Model | MY-375 |
| Material | Silicone |
| Number of Items | 2 (for a pair of pumps) |
| Color | Whiteness |
| Size | 2 Count |
| Product Dimensions | 10.43 x 6.69 x 3.74 inches; 1.87 Pounds |
| Suction Power | Up to 350mmHg |
| Modes | 4 (Massage, Frequency Conversion, Breast Pumping, Automatic) |
| Suction Levels | 12 |
| Milk Collector Capacity | 7oz / 210ml |
9. Warranty and Support
For warranty information and customer support, please refer to the contact details provided with your product packaging or visit the official OTEEIDA website. Keep your proof of purchase for warranty claims.
Legal Disclaimer: Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition. This product is a breast pump and not a dietary supplement.