81% of users report improved comfort over first generation
Installation
Quick assembly in 20+ seconds, disassembly in 3 seconds
Accessories
Includes 5 accessories; new cat ear buckle handle for easy installation and removal without installation clips
Milk Volume Increase
10-70ml increase in milk output due to simulated baby sucking
Suction Efficiency
28.2% improvement in milk expression efficiency with dual-layer flange and biomimetic suction curve
Maximum Suction Pressure
Up to 292 mmHg (S12pro), 285 mmHg (2nd Gen)
Suction Modes
3 modes with 9 adjustable levels
Massage Mode
Simulates quick baby sucking to stimulate milk letdown
Expression Mode
Simulates slow deep sucking to accelerate milk flow
Mixed Mode
Combination of shallow and deep sucking to aid complete milk expression
Noise Level
Ultra-quiet operation at 46 dB (measured at 30 cm), suitable for public spaces and night use without disturbing baby
Battery & Charging
Type-C fast charging (30 minutes for partial charge, 240 minutes full charge)
Long battery life supports approximately 16 uses per full charge (based on 15 minutes max suction per use)
Automatic power-off feature
Additional details
Weight
Lightweight and portable at 240 g (wireless integrated design)
Safety
BPA-free materials, dust-proof cover, and milk bowl with standing design to prevent contamination and leakage
Compatibility
Multiple flange sizes available to ensure optimal fit and comfort, preventing nipple damage and ensuring efficient milk extraction
Cleaning Instructions
Do not use UV sterilization on accessories to avoid aging, deformation, or leakage
Removable parts include suction bowl, duckbill valve, flange, milk bowl, and dust cover
1. Position breast so nipple is centered in flange tube, ensuring no gaps for effective suction
2. Secure pump with bra, verify tight seal, then power on and select suction mode
3. To remove, insert finger between flange and breast to break seal, tilt forward to prevent milk spillage
4. Close flange before pouring milk and remove main unit to avoid overflow
Collaborates with over 450,000 users worldwide and partners with 60+ countries and regions
Integrated with US healthcare insurance systems
Designed to simulate natural baby sucking patterns with variable frequency suction technology to promote comfortable and efficient milk expression
User studies indicate 90% of users experience effective milk emptying and 59% report increased milk volume
Quiet operation and ergonomic design support discreet and comfortable pumping anytime, anywhere
User testing with 36 and 46 breastfeeding mothers comparing first and second generation models
Laboratory noise and battery performance tests by Momcozy
Milk letdown timing and volume vary individually based on physiology, pumping intervals, device adaptation, and breastfeeding duration. Relaxation during pumping is recommended to facilitate oxytocin release and milk flow.
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