1. Introduction
This manual provides essential information for the safe and effective use of the Dysead AC Adapter Charger, model Dysead-250418-200. This adapter is designed for compatibility with the Bluzen HP-669 7.4V Percussion Massager. Please read these instructions thoroughly before use.

Image 1: The Dysead AC Adapter Charger, showing the main unit and its power plug.
2. Safety Information
To ensure safe operation and prevent damage, observe the following precautions:
- Device Compatibility: Always verify the socket size, power consumption, and polarity of your device to ensure compatibility with this adapter. Incorrect usage may lead to malfunction or damage.
- Protection Features: This adapter is equipped with multiple safety mechanisms:
- Over Current Protection (OCP): Prevents damage from excessive current flow.
- Over Voltage Protection (OVP): Safeguards against voltage surges.
- Over Temperature Protection (OTP): Protects against overheating.
- Short Circuit Protection (SCP): Prevents damage from short circuits.
- Environmental Conditions: Use the adapter in dry conditions. Avoid exposure to water, moisture, or extreme temperatures.
- Handling: Do not attempt to open, modify, or repair the adapter. Refer all servicing to qualified personnel.

Image 2: Visual representation of the adapter's safety features, including overheating, voltage, current, short-circuit, and electric leakage protection.
3. Setup Instructions
- Inspect the Adapter: Before first use, visually inspect the adapter and its cable for any signs of damage. Do not use if damaged.
- Connect to Device: Insert the adapter's output connector securely into the power input port of your Bluzen HP-669 Percussion Massager.
- Connect to Power Outlet: Plug the adapter's AC input prongs into a standard 120V AC wall outlet.
- Verify Connection: Ensure all connections are firm. The device should now receive power or begin charging if applicable.
4. Operating Instructions
The Dysead AC Adapter Charger functions as a power supply for compatible devices. Once properly connected, it provides the necessary electrical current to operate or charge your Bluzen HP-669 Percussion Massager. No further user interaction is required for the adapter's operation.
- The adapter is designed for continuous use within its specified voltage and current limits.
- Disconnect the adapter from the power outlet when not in use for extended periods.
5. Maintenance
Proper care ensures the longevity and reliable performance of your AC adapter:
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tightly coiling the cable to prevent damage.
- Cable Care: Do not bend, twist, or pull the cable excessively. Ensure the cable is not pinched or placed under heavy objects. The internal construction features premium copper wire for durability, but proper handling is still essential.

Image 3: Cross-section view of a power cord, highlighting the premium copper wire, aluminum foil shield, wire insulation, and PVC cable jacket, indicating robust construction.
6. Troubleshooting
If the adapter is not functioning as expected, consider the following:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not receiving power |
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| Adapter feels hot |
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7. Specifications
| Feature | Detail |
|---|---|
| Brand | Dysead |
| Model Number | Dysead-250418-200 |
| Compatible Devices | Bluzen HP-669 7.4V Percussion Massager |
| Input Voltage | 120 volts AC |
| Output Voltage | 7.4 volts DC |
| Connector Type | Power Source |
| Power Plug Type | Type A - 2 pin (North American) |
| Color | Black |
| Item Weight | 4 ounces |
| Included Components | 1 adapter |
| Manufacturer | ShenZhen Moveforest Electric Appliance Industry Co.,LTD |
8. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the seller directly. Keep your purchase receipt as proof of purchase.