1. Introduction
Thank you for choosing the Techwood TH-5501 Water Flosser and Rechargeable Toothbrush. This comprehensive oral hygiene system combines advanced sonic cleaning technology with effective water flossing to provide a superior clean. This manual provides essential information for the safe and efficient use, maintenance, and troubleshooting of your device. Please read it thoroughly before first use and keep it for future reference.
2. Safety Information
To ensure safe operation, please observe the following precautions:
- Do not immerse the charging base or power adapter in water or other liquids.
- Keep the device away from heat sources and direct sunlight.
- This appliance is water-resistant, not waterproof. Do not use it in the shower or bath.
- Do not attempt to disassemble or repair the device yourself. Contact qualified service personnel.
- Ensure the voltage specified on the adapter matches your local power supply before plugging in.
- Supervise children to ensure they do not play with the appliance.
- If the power cord or plug is damaged, do not use the device.
- Only use attachments and accessories recommended by the manufacturer.
3. Product Overview
The Techwood TH-5501 system includes a water flosser, a sonic toothbrush, and a shared charging base. Familiarize yourself with the components:


Key Features:
- Advanced Sonic Cleaning: The toothbrush delivers 31,000 vibrations per minute for powerful plaque removal.
- Multiple Brushing Modes: Choose from 3 modes: Clean, Soft, and Massage for personalized oral care.
- Smart Timer: A 2-minute timer with 30-second interval reminders ensures thorough brushing of all mouth quadrants.
- Water Flosser Modes: The water flosser offers Normal, Soft, and Pulse modes for varying gum sensitivities and cleaning needs.
- Rechargeable Design: Both devices charge conveniently on a single base.
- Water-Resistant: Designed for safe use in the bathroom environment.
4. Setup
4.1 Initial Charging
- Place the charging base on a stable, dry surface near a power outlet.
- Plug the power adapter into the charging base and then into a 40V~ 50/60Hz power outlet.
- Place the water flosser and/or the toothbrush onto their respective charging posts on the base.
- The indicator light on each device will illuminate to show it is charging. Allow at least 12-16 hours for the first full charge.
4.2 Attaching Brush Heads (Toothbrush)
- Align the brush head with the metal shaft on the toothbrush handle.
- Push the brush head down firmly until it clicks into place.
4.3 Filling the Water Reservoir (Water Flosser)
- Twist the water reservoir counter-clockwise to detach it from the main unit.
- Fill the reservoir with lukewarm water. You may add a small amount of mouthwash if desired.
- Reattach the reservoir by twisting it clockwise until secure.
- Insert the desired nozzle into the opening on top of the water flosser until it clicks.
5. Operating Instructions
5.1 Using the Sonic Toothbrush
- Wet the brush head and apply a small amount of toothpaste.
- Press the power button to turn on the toothbrush. It will start in the default 'Clean' mode.
- Press the mode button repeatedly to cycle through 'Clean', 'Soft', and 'Massage' modes. Select your preferred mode.
- Place the brush head against your teeth at a slight angle towards the gumline.
- Gently move the brush across your teeth, allowing the sonic vibrations to do the work.
- The toothbrush will pause briefly every 30 seconds to indicate it's time to move to another quadrant of your mouth.
- After 2 minutes, the toothbrush will automatically turn off.
- Rinse your mouth and the brush head thoroughly after use.
5.2 Using the Water Flosser
- Ensure the reservoir is filled and a nozzle is attached.
- Select your desired mode: 'Normal' for daily cleaning, 'Soft' for sensitive gums, or 'Pulse' for gum massage.
- Lean over a sink and place the nozzle tip into your mouth, aiming at the gumline.
- Press the ON/OFF button to start the water flow.
- Guide the water jet along your gumline and between your teeth.
- Keep your mouth slightly open to allow water to flow into the sink.
- When finished, press the ON/OFF button to stop the water flow.
- Empty any remaining water from the reservoir.
6. Maintenance and Cleaning
6.1 Cleaning the Toothbrush
- After each use, rinse the brush head and handle under running water.
- Wipe the handle with a soft, damp cloth.
- Do not use abrasive cleaners or harsh chemicals.
6.2 Cleaning the Water Flosser
- After each use, empty the water reservoir.
- Rinse the reservoir and nozzle under running water.
- Wipe the main unit with a soft, damp cloth.
- For deeper cleaning, periodically fill the reservoir with warm water and a tablespoon of white vinegar, run the flosser until empty, then rinse with clean water.
6.3 Replacing Brush Heads
It is recommended to replace toothbrush heads every 3 months, or sooner if the bristles are frayed. To replace, simply pull the old brush head off the handle and push a new one on until it clicks.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not turning on | Low battery or not charged. | Place the device on the charging base and ensure it is properly connected to power. Allow sufficient charging time. |
| Weak water pressure (Water Flosser) | Low water level in reservoir, clogged nozzle, or selected 'Soft' mode. | Refill reservoir. Clean the nozzle. Switch to 'Normal' or 'Pulse' mode. |
| Toothbrush not vibrating strongly | Low battery or selected 'Soft' mode. | Recharge the toothbrush. Switch to 'Clean' or 'Massage' mode. |
| Water leakage (Water Flosser) | Reservoir not properly attached or seal is damaged. | Ensure the reservoir is twisted on securely. Check the rubber seal for damage. |
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Techwood |
| Model Number | TH-5501 |
| Power Source | Electric Cable (Rechargeable) |
| Input Voltage | 40V~ 50/60Hz |
| Power Consumption | 2.8 W |
| Toothbrush Vibrations | 31,000 per minute |
| Brushing Modes | Clean, Soft, Massage |
| Water Flosser Modes | Normal, Soft, Pulse |
| Timer | 2-minute auto-off with 30-second interval timer |
| Special Feature | Water-resistant |
| Material | Acrylonitrile Butadiene Styrene |
| Color | White |
| Compliant Specifications | CE |
| Package Dimensions | 38.8 x 33.7 x 24 cm |
9. Warranty and Support
Specific warranty information is not provided in the product details. For warranty claims, technical support, or replacement parts, please contact your retailer or the manufacturer directly. Keep your proof of purchase for any warranty-related inquiries.





