Painful Pumping: Common Pain Points and How to Fix Them
This article explains common breast pumping discomforts and offers practical adjustments to improve comfort, efficiency, and confidence while pumping breast milk.
Lasts All Day. Pump Anytime, Anywhere.
The S9 Pro hands-free breast pump delivers better efficiency in less time, giving moms more time for themselves.
The Stimulation mode mimics a baby’s natural suckling to help trigger letdown more effectively.
Operates at a low 50dB—quiet enough not to wake your baby, perfect for nighttime pumping.
The LED screen is easy to read at a glance, even in the dark.
Auto shut-off after 30 minutes of inactivity for added safety and peace of mind.
Specifications
Material: PP + food-grade silicone
Default Flange Size: 24mm
Flange Insert Sizes: 17 / 19 / 21mm
Noise Level: < 45dB
Charging Time: ~2.5 hours
Usage Time: 8–9 sessions
Charging Port: Type-C (5V/1A)
Capacity: 6 oz (pump within 4 oz)
Auto Shut-Off: After 30 minutes
Need a different flange size?
We’ve created a guide to help you find the best fit.
Check the flange size guide here.
Find other flange sizes here.
Note: Breast size can change before and after pumping. Measure just before pumping for accuracy.
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●Processing time: 1-2 business days
●Shipping time: 3-8 days (excluding weekends and holidays).
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30-Day No-Reason Return Policy
Momcozy offers a 30-day no-reason return policy for unused and unopened products with intact packaging. Returns must include all original accessories and proof of purchase. Customers are responsible for return shipping costs, and original shipping fees are non-refundable. Clearance items and non-Momcozy branded products are excluded from this policy.
Exchange Policy
Non-Quality Issues: Within 30 days of receipt, unused products may be exchanged for reasons such as size mismatch, with the return shipping cost to be borne by you.
Quality Issues: If a product is damaged due to quality issues within the warranty period, please contact our customer service team for assistance. They will provide you with a solution that best suits your needs.
If you have any problems or malfunctions during use, please contact us at support@momcozy.com, and please allow up to 24 business hours for a response to your question.
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At Momcozy, we want you to feel confident in your purchase. That's why we offer a 1-year warranty (2 years in the EU) on most battery-operated products. The warranty covers failures caused by non-human factors, such as manufacturing defects or internal malfunctions under normal use. Simply keep your proof of purchase and contact us if you experience any issues within the warranty period. We'll work with you to find a solution, whether it's a repair, replacement, or refund.
Some exclusions apply, such as damage caused by misuse or unauthorized modification. For more details, please see our full warranty policy.



1. Ensure that the breast pump and accessories installed correctly and that the flange fits the breast when pumping. (Install the breast pump on the milk bowl, if it makes a “click” sound, the installation is successful). And the linker 'ears' align with slots in the milk collector.
2. Suggest bra style: full coverage bra/stretch fabric/with nursing buckle/wireless bra.
3. The silicone accessories can be replaced every 3 months or so according to the installation and suction status of the breast pump.
4. Select the correct size flange. (17/19/21/27mm also available in Momcozy Amazon store).
It does not affect the use, just select the correct flange size.
Measurement Method: Use the ''nipple measure tool''(included in the package), select the flange according to the measurement size or refer to the link ''size selection'' video.
Tips: Troubleshooting & After-sales Policy
You can watch the videos to help you solve the problem. If you have any questions, you can talk to us at any time, we will provide every customer with satisfactory plan. Bon shopping!
You can watch the videos to help you solve the problem. If you have any questions, you can talk to us at any time, we will provide every customer with satisfactory plan. Bon shopping!