Introduction
Thank you for choosing the Bioby Portable Electric Hands-Free Breast Pump. This device is designed to provide a comfortable and efficient milk expression experience, allowing you to pump discreetly and conveniently at home, work, or on the go. Its quiet operation and hands-free design aim to integrate seamlessly into your daily routine.

Image: The Bioby breast pump offers a hands-free design, allowing users to multitask during pumping sessions.
Safety Information
Please read all instructions carefully before using the Bioby Portable Electric Hands-Free Breast Pump. Keep this manual for future reference.
- Material Safety: The breast shields are made from food-grade silicone, ensuring safety for both your skin and expressed milk. The product is BPA-free.
- Anti-Reflux Design: The anti-reflux duckbill valve prevents milk backflow and leakage, helping to keep your clothing dry and maintain milk hygiene.
- Cleaning: Always ensure all parts that come into contact with breast milk are thoroughly cleaned and sterilized before each use. The motor unit is not washable.
- Power Source: Use only the provided charging cable and a compatible power adapter.
- Disassembly: Do not attempt to disassemble the motor unit.

Image: The anti-reflux system, featuring a silicone membrane and duckbill valve, prevents milk leakage and contamination.
Product Components
The Bioby Portable Electric Hands-Free Breast Pump includes the following components:
- Silicone Breast Shield (24mm & 27mm)
- Milk Collector Cup
- Silicone Diaphragm
- Bra Adjustment Buckle
- Type-C Charging Cable
- 21mm Flange Insert
- Pump Motor Unit
- Duckbill Valve

Image: A detailed view of all included parts, with labels for easy identification.
Setup
1. Assembly
Before first use and after each cleaning, ensure all parts are dry. Assemble the breast pump by carefully connecting the silicone diaphragm, duckbill valve, and breast shield to the milk collector cup. Finally, attach the motor unit securely to the top of the assembled cup.
2. Choosing the Correct Breast Shield Size
Proper breast shield sizing is crucial for comfort and efficient milk expression. The Bioby pump includes 24mm and 27mm breast shields, along with a 21mm flange insert.
- Align your nipple with the center hole of the silicone breast shield.
- Gently press the shield against your breast. Your nipple should be centered and move freely within the tunnel without excessive friction.
- If using the 21mm insert, place it inside the 24mm breast shield. Note: Do not insert the 21mm flange into a 27mm shield, as this may cause milk leakage.

Image: Visual guide for selecting the appropriate breast shield size and using the 21mm insert.

Image: Guide to correctly measure your nipple for optimal breast shield fit.
3. Wearing the Breast Pump Correctly
- Press the silicone breast shield firmly against your breast, ensuring your nipple is centered.
- Wear a nursing bra after securing the breast pump in place. Keep your body upright, and ensure the main unit is oriented upwards.
- Use the bra adjustment buckle to create more space if needed for comfort and proper fit.

Image: Step-by-step instructions for wearing the breast pump correctly for hands-free operation.
4. Charging the Device
Connect the Type-C charging cable to the pump motor unit and a suitable power source. A full charge takes approximately 2.5 hours and provides up to 90 minutes of operation. The battery status will be displayed on the LCD screen.

Charging with power bank

Compact for travel

Discreet use at work
Operating Instructions
1. Powering On/Off and Mode Selection
The pump features an LCD touch screen for easy operation. Press and hold the power button to turn the device on or off. Short press the power button to cycle through the three modes: Massage, Expression, and Automatic.
2. Understanding the Modes and Suction Levels
The Bioby breast pump offers 3 modes and 12 adjustable suction levels to cater to individual needs and comfort.
- Massage Mode: Stimulates the milk let-down reflex and can help increase milk production.
- Expression Mode: Provides continuous pumping for efficient milk collection.
- Automatic Mode: Combines massage and expression phases to mimic a baby's natural suckling pattern.
Use the '+' and '-' buttons on the LCD panel to adjust the suction intensity within each mode (1-12 levels).

Image: Visual representation of the three distinct pumping modes and their 12 intensity levels.

Image: The LCD panel displays current mode, suction level, and battery status for easy monitoring.
3. Memory Function
The pump features a memory function that automatically saves your last used mode and suction level, eliminating the need to reset your preferences for each pumping session.
4. Automatic Shut-off
For safety and convenience, the pump will automatically shut off after 20 minutes of continuous operation.
5. Pouring Milk
After completing your pumping session, follow these steps to safely transfer the expressed milk:
- Remove the breast pump from your breast, keeping your body upright to prevent spills.
- Hold the milk collector cup and carefully detach the motor unit.
- Pour the expressed breast milk through the designated opening into a storage bottle or bag.

Image: Step-by-step guide for safely pouring expressed milk from the collector cup.
Cleaning and Maintenance
Proper cleaning and sterilization are essential for hygiene and the longevity of your breast pump. Always clean parts immediately after each use.
1. Disassembly for Cleaning
- Remove the motor unit. Note: The motor unit is not washable and should not be submerged in water.
- Disassemble the silicone breast shield from the milk collector.
- Separate the silicone diaphragm and the duckbill valve from the milk collector.

Image: The pump disassembles into fewer parts for easier and more thorough cleaning.
2. Cleaning Methods
- Washing: Wash all disassembled parts (except the motor unit) in warm soapy water. Rinse thoroughly with clean water.
- Sterilization: Parts can be sterilized using UV sterilization or steam sterilization methods. Ensure parts are completely dry before reassembly.
- Dishwasher: The product is not dishwasher safe.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No suction or weak suction |
|
|
| Milk leakage |
|
|
| Pump not turning on |
|
|
Specifications
- Model Name: Electric
- Model Number: POA9848739
- Operating Mode: Electric
- Material: Silicone (BPA-free)
- Special Features: Portable, Rechargeable, Hands-free use
- Power Source: Electric Cable (Type-C)
- Battery: 2 Lithium-ion batteries (included)
- Charging Time: Approximately 2.5 hours
- Operating Time: Up to 90 minutes on a full charge
- Automatic Shut-off: 20 minutes
- Dimensions (L x W x H): 14 x 13 x 13 cm (5.5 x 5.1 x 5.1 inches)
- Weight: 230 grams (0.5 lbs)
- Noise Level: Approximately 45 dB
- Milk Capacity: 180 ml (6 oz)
- Flange Sizes: 21mm (insert), 24mm, 27mm
Warranty and Support
Bioby products are manufactured to high-quality standards. If you encounter any issues or have questions regarding your Bioby Portable Electric Hands-Free Breast Pump, please contact our customer support. We are committed to resolving any problems promptly.
Please refer to your purchase documentation for specific warranty terms and contact information.