Introduction
Thank you for choosing the MySmile MS202B Cordless Ultrasonic Retainer Cleaner. This device utilizes advanced 48kHz high-frequency ultrasonic technology to provide thorough and gentle cleaning for various oral appliances and small items. Please read this manual carefully before use to ensure proper operation and maintenance.
Product Features
- 48kHz High-Frequency Ultrasonic Cleaning: Generates millions of nano-scale bubbles for deep cleaning.
- Cordless Design: Equipped with a 4000mAh battery for portability.
- 200ML Capacity: Suitable for various dental appliances and small items.
- Multiple Cleaning Modes: One-button control with four distinct cleaning modes.
- UVC Light Sterilization: Integrated UVC lights for enhanced hygiene.
- Quiet Operation: Designed for a peaceful cleaning experience.
Package Contents
Please check the package for the following items:
- MySmile MS202B Ultrasonic Cleaner Unit
- USB Charging Cable
- Tweezer
- User Manual

Image: Contents of the MySmile MS202B package. It includes the main cleaning unit, a USB charging cable, a pair of tweezers, and the user manual.
Safety Precautions
To ensure safe operation and prevent damage to the device or injury, please observe the following precautions:
- Always use cold water for cleaning.
- Do not immerse the main unit in water. Only the cleaning tank is designed for liquid.
- Keep out of reach of children.
- Do not disassemble or attempt to repair the device. Contact customer support if issues arise.
- Ensure the charging port is dry before connecting the USB cable.
- This device is for cleaning purposes only and is not a medical device.
Setup
Charging the Device
- Connect the USB charging cable to the charging port on the device.
- Connect the other end of the USB cable to a compatible USB power adapter (not included) or a computer USB port.
- The indicator light will show charging status. A full charge typically takes approximately 75 minutes.

Image: Illustration of the MySmile MS202B's internal battery, highlighting its cordless nature and fast charging capability, with a full charge taking about 75 minutes.
Preparing for First Use
- Ensure the device is fully charged.
- Open the lid of the cleaning tank.
- Fill the tank with cold water up to the MAX fill line. You may add a small amount of non-abrasive cleaning solution specifically designed for oral appliances if desired.
Operating Instructions
Placing Items for Cleaning
The MySmile MS202B is suitable for cleaning various items:
- Retainers, Dentures, Mouthguards, Night Guards, Aligners
- Toothbrush Heads
- Jewelry (waterproof only)
- Small waterproof watches
Carefully place the item(s) into the cleaning tank, ensuring they are fully submerged in water. Do not overfill the tank.

Image: A diagram illustrating the versatility of the MySmile MS202B, showing it can clean retainers, dentures, mouthguards, toothbrush heads, and jewelry.
Selecting a Cleaning Mode
The device features a one-button control with four cleaning modes:
- Mode 1 (300s Clean + UV): Press the power button once for a 300-second ultrasonic cleaning cycle with UVC sterilization.
- Mode 2 (600s Clean + UV): Press the power button twice for a 600-second ultrasonic cleaning cycle with UVC sterilization.
- Mode 3 (600s UV Only): Press the power button three times for a 600-second UVC sterilization cycle only.
- Mode 4 (600s Clean Only): Press the power button four times for a 600-second ultrasonic cleaning cycle only.
The digital display will show the remaining time for the selected cycle.

Image: Close-up of the MySmile MS202B's control panel, detailing the four available cleaning modes: 300s Clean+UV, 600s Clean+UV, 600s UV, and 600s Clean. The digital display shows the timer.
After Cleaning
- Once the cycle is complete, the device will automatically turn off.
- Carefully open the lid and remove your item(s) using the provided tweezers or by hand.
- Rinse the cleaned item(s) thoroughly under running water.
- Empty the water from the cleaning tank and wipe it dry.
Maintenance
Cleaning the Device
- After each use, empty the water from the cleaning tank.
- Wipe the inside of the tank with a soft, damp cloth.
- Wipe the exterior of the device with a dry cloth.
- Do not use abrasive cleaners or harsh chemicals.
Storage
Store the device in a cool, dry place away from direct sunlight and moisture when not in use. Ensure the tank is empty and dry before storage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery or not charged. | Charge the device fully. |
| Cleaning performance is poor. | Insufficient water, items not fully submerged, or excessive dirt. | Ensure water level is adequate. Pre-rinse heavily soiled items. Use a longer cleaning cycle. |
| Device stops during operation. | Battery low or cycle completed. | Recharge the device. Check the digital display for cycle completion. |
| Unusual noise during operation. | Normal ultrasonic vibration sound. | This is normal. If the noise is excessively loud or unusual, contact customer support. |
Specifications
- Model: MS202B
- Ultrasonic Frequency: 48kHz
- Battery Capacity: 4000mAh (2x 2000mAh)
- Tank Capacity: 200ml
- Charging Time: Approximately 75 minutes
- Dimensions: Approximately 4.5 inches (height) x 4 inches (diameter)
- Manufacturer: MySmile

Image: The MySmile MS202B cleaner demonstrating its compact and portable size, measuring approximately 4.5 inches in height and 4 inches in width, fitting easily into a travel pouch.
Warranty and Support
MySmile products are designed for quality and reliability. For warranty information, technical support, or any questions regarding your MS202B Cordless Ultrasonic Retainer Cleaner, please contact MySmile customer service through the retailer where you purchased the product or visit the official MySmile website.
Please retain your proof of purchase for warranty claims.