Introduction
Thank you for choosing the NCVI Heated Wearable Breast Pump. This manual provides essential information for the safe and effective use of your new breast pump. Please read all instructions carefully before first use and retain for future reference.
The NCVI AM8161 is designed for hands-free expression, featuring 360° surround heating, hospital-grade suction up to 300mmHg, a long-lasting 2000mAh battery, and multiple modes and levels for a customizable pumping experience. Its slim, leakproof design ensures discretion and convenience.
What's in the Box
Your NCVI Heated Wearable Breast Pump package includes the following components:
- NCVI Heated Wearable Breast Pump Motor Unit
- Milk Collector Cup
- Flange (28mm pre-installed)
- Flange Inserts (19mm, 21mm, 24mm)
- Diaphragm
- Duckbill Valve
- USB Charging Cable
- Nipple Measurement Tool
- Disposable Nursing Pads
- Breast Milk Storage Bags

Image: NCVI Heated Wearable Breast Pump with included accessories, including flange inserts, milk storage bags, and a nipple measurement tool.
Setup
1. Flange Sizing
Using the provided nipple measurement tool, determine your correct flange size for optimal comfort and milk expression. The pump includes 19mm, 21mm, 24mm, and 28mm flange options.

Image: A visual representation of the NCVI breast pump with different flange sizes (19mm, 21mm, 24mm, 28mm) to ensure a perfect fit.
2. Assembly
Ensure all parts are clean and dry before assembly. Follow these steps:
- Attach the duckbill valve to the flange, pressing firmly until secure.
- Fit the diaphragm onto the flange, ensuring a tight seal.
- Connect the assembled flange and diaphragm to the milk collector cup.
- Attach the motor unit securely on top of the assembled milk collector and flange.
Video: This video demonstrates the assembly process of the NCVI Heated Wearable Breast Pump, showing how to connect the diaphragm, valve, flange, milk collector, and motor unit.
Operating Instructions
1. Power On/Off
Press and hold the power button (located at the top center of the motor unit) to turn the pump on or off. A green light will indicate the pump is active. The pump will automatically shut down after 10 minutes of inactivity.
2. Switching Modes
The NCVI AM8161 offers 4 distinct modes: Multitronic, Massage, Suck Simulate, and Express. Short press the 'M' button to cycle through these modes. Each mode is indicated by a different light pattern on the motor unit.
- Multitronic Mode: Variable frequency for increased milk output, ideal for over-suppliers.
- Massage Mode: Gentle stimulation to initiate milk flow and let-down.
- Suck Simulate Mode: Mimics a baby's natural sucking rhythm for continuous milk flow.
- Express Mode: Deep, slow suction to effectively empty the breast.
3. Adjusting Suction Levels
Use the '+' and '-' buttons to adjust the suction intensity within each mode. There are 9 adjustable levels, allowing you to find your most comfortable and effective setting.
4. Heating Function
The pump features a 360° surround heating function. Long press the 'M' button to activate or deactivate heating. The heating warms the breast evenly to 98–108°F in approximately 30 seconds, promoting milk flow and comfort. It automatically shuts off after 10 minutes.
Video: This video highlights the heating function of the NCVI Heated Wearable Breast Pump, demonstrating how gentle warmth can enhance milk output and overall comfort during pumping sessions.
Cleaning & Maintenance
Proper cleaning and maintenance are crucial for hygiene and pump longevity. Always clean parts immediately after each use.
1. Disassembly
Carefully detach the motor unit from the milk collector. Then, separate the flange, diaphragm, duckbill valve, and milk collector cup. The milk collector cup features a double-seal design that can be opened for thorough cleaning.
2. Cleaning
Rinse all washable parts (excluding the motor unit) with clean water. Wash with warm, soapy water and rinse thoroughly. All parts are BPA-free and food-grade silicone.
3. Sanitizing
Sterilize washable components by boiling or steaming for no more than 5 minutes. Ensure all components are completely dry before reassembling to prevent damage to the main unit and maintain suction power.
Video: This video illustrates the disassembly, cleaning, and sanitizing process for the NCVI Heated Wearable Breast Pump, emphasizing the ease of cleaning its few parts.
Charging
The pump is equipped with a 2000mAh rechargeable battery. Use the provided magnetic USB charging cable to charge the unit. A full charge provides up to 180 minutes of use, or approximately 8 pumping sessions. The indicator light will turn solid green when fully charged. Please power off the pump while charging.

Image: The NCVI breast pump highlighting its 2000mAh battery, 180 minutes of use, and magnetic charging feature.
Troubleshooting
If you encounter issues with your NCVI breast pump, consider the following:
- No Suction/Weak Suction: Ensure all parts are correctly assembled and securely sealed. Check that the duckbill valve is clean and not damaged. Ensure the diaphragm is properly seated.
- No Power: Verify the pump is fully charged. Connect the magnetic USB cable and check for the charging indicator light.
- Leaks: Confirm the flange and milk collector are correctly assembled and tightly sealed. Ensure the double-seal flange is properly positioned.
- Discomfort during Pumping: Re-evaluate your flange size using the nipple measurement tool. Adjust suction levels to a comfortable setting. Utilize the heating function for added comfort and milk flow.
Specifications
| Feature | Specification |
|---|---|
| Model Number | AM8161 |
| Suction Range | Up to -300mmHg (Hospital-Grade) |
| Battery Capacity | 2000mAh |
| Battery Life | Up to 180 minutes (approx. 8 sessions) |
| Modes | 4 (Multitronic, Massage, Suck Simulate, Express) |
| Suction Levels | 9 |
| Heating Temperature | 98–108°F |
| Material | Polypropylene, Silicone (BPA-Free) |
| Special Features | Adjustable Suction, Hands-Free Usage, Painless, Rechargeable, Wearable, 360° Heating, Leakproof Design |
Warranty and Support
For warranty information, product support, or to purchase replacement parts, please visit the official NCVI website or contact customer service through your retailer. Keep your purchase receipt as proof of purchase.