1. Introduction
The OralB D103K Children's Electric Toothbrush is designed to provide effective and gentle dental care for children, making brushing an engaging and fun experience. This manual provides essential information on setting up, operating, maintaining, and troubleshooting your electric toothbrush.
Product Highlights:
- Enhanced Cleaning: Upgraded bristles and a 360-degree round head for superior plaque removal.
- Gentle Care: Thin, soft wavy bristles and pressure buffering for sensitive gums.
- Interactive App: Connects to a 'Magic Timer' app to make brushing a game, extending brushing time and tracking progress.
- Smart Timer: Built-in 2-minute timer with 30-second quadrant reminders.
- Waterproof Design: IPX7 rated for safe use and easy cleaning.
2. Package Contents
Please check the contents of your package upon receipt. The OralB D103K is available in different editions:
- Standard Package:
- Electric toothbrush handle (x1)
- Brush head (x1)
- Inductive charger (x1)
- Gift Box Edition:
- Electric toothbrush handle (x1)
- Brush heads (x3)
- Inductive charger (x1)
The toothbrush handle may feature popular characters like Frozen or Spider-Man, depending on the edition purchased.


3. Setup and Initial Use
3.1 Charging the Toothbrush
- Place the inductive charger on a stable, dry surface.
- Plug the charger into a 220V power outlet.
- Place the toothbrush handle onto the charging base. The toothbrush will begin charging automatically.
- Allow the toothbrush to charge fully before first use.

3.2 Attaching the Brush Head
Align the brush head with the shaft on the toothbrush handle and push it down until it clicks into place. Ensure it is securely fastened.
3.3 App Installation (Optional but Recommended)
To enhance the brushing experience with interactive games and tracking:
- Download the 'Magic Timer' app from your device's app store.
- Follow the in-app instructions to pair your OralB D103K toothbrush.
- The app offers timing games, brushing logs, and photo albums to make brushing more fun and effective.

4. Operating Instructions
4.1 Brushing Modes
The OralB D103K features two primary brushing modes:
- Sensitive Plus Mode: Provides an extra gentle clean, ideal for children with sensitive gums or during the dental transitional period.
- Daily Clean Mode: Offers a thorough and effective clean for everyday use.
To switch between modes, press the power button repeatedly after turning the toothbrush on.

4.2 Brushing Technique
- Wet the brush head and apply a pea-sized amount of toothpaste.
- Place the brush head against the teeth at a slight angle towards the gum line.
- Press the power button to turn on the toothbrush.
- Move the brush head slowly from tooth to tooth, allowing the 360-degree round head to clean each surface thoroughly. Do not scrub aggressively.
- The built-in Smart Timer will pulse every 30 seconds to remind your child to move to a different quadrant of their mouth.
- After 2 minutes, the toothbrush will indicate that the recommended brushing time is complete.
- Turn off the toothbrush by pressing the power button.


5. Maintenance
5.1 Cleaning the Toothbrush
- After each use, rinse the brush head thoroughly under running water while the toothbrush is still switched on.
- Remove the brush head from the handle and rinse both parts separately.
- Wipe the handle with a damp cloth to remove any toothpaste residue.
- Ensure the handle and brush head are dry before storing.
5.2 Replacing Brush Heads
Dentists recommend replacing brush heads every 3 months, or sooner if the bristles are frayed or worn. Replacement brush heads are available from OralB retailers.
5.3 Charging
Keep the toothbrush charged by placing it on the inductive charger when not in use. This ensures it is always ready for optimal performance.
6. Troubleshooting
- Toothbrush not turning on: Ensure the toothbrush is fully charged. If it still doesn't turn on, try cleaning the charging contacts on both the handle and the charger.
- Reduced brushing power: This usually indicates a low battery. Place the toothbrush on the charger for a full charge cycle.
- Brush head feels loose: Remove the brush head and reattach it, ensuring it clicks securely into place. If it continues to feel loose, the brush head may be worn and needs replacement.
- App not connecting: Ensure Bluetooth is enabled on your device and the toothbrush is powered on. Try restarting both the app and the toothbrush.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Oral B |
| Model | D103K (also referred to as D12103) |
| Age Group | Children |
| Power Type | Rechargeable |
| Operating Modes | 2 (Sensitive Plus Mode, Daily Clean Mode) |
| Movements per Minute | 30,000 to 50,000 |
| Bristle Stiffness | SOFT |
| Waterproof Rating | IPX7 (Whole body waterproof) |
| Voltage | 220V |
| Dimensions | 12.3 x 8.3 x 25.8 cm |
| Material | ABS |
| Certifications | RoHs, CE |
| Special Features | Timed Reminders, APP Interactive Available |
8. User Tips
- Engage with the App: Encourage your child to use the 'Magic Timer' app during brushing. The interactive games and rewards can significantly improve brushing compliance and duration.
- Gentle is Key: Remind your child that electric toothbrushes do the work for them. They should guide the brush gently along each tooth surface, not scrub aggressively.
- Full Charge for Best Performance: Always ensure the toothbrush is adequately charged for optimal power and cleaning effectiveness.
- Supervise Young Children: For younger children, parental supervision is recommended to ensure proper technique and safety.
9. Frequently Asked Questions (FAQ)
- Q: Is the toothbrush safe for young children?
- A: Yes, the OralB D103K is designed for children and features soft bristles and a Sensitive Plus mode for gentle cleaning. Parental supervision is always recommended.
- Q: How long does the battery last on a full charge?
- A: Battery life can vary based on usage, but a full charge typically provides several days of brushing. It's recommended to keep it on the charger when not in use.
- Q: Can I use any OralB brush head with this handle?
- A: The D103K is compatible with most OralB Kids brush heads. Always check the packaging of replacement brush heads for compatibility.
- Q: What if my child doesn't like the app?
- A: The app is an optional feature to make brushing more fun. The toothbrush functions perfectly well without the app, utilizing its built-in Smart Timer.
10. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact the official OralB customer service in your region. Keep your proof of purchase for any warranty claims.





