1. Product Overview
The POSEIDON HM144 is a wireless adjustable stroke tattoo machine designed for professional tattoo artists. It features a powerful custom motor, a comfortable anti-slip grip, and a digital display for precise control over voltage, stroke, and operating modes. The unibody design is crafted from high-hardness, lightweight aluminum for durability and ease of use.


2. Setup Instructions
- Charging the Device: The tattoo machine features Type-C charging. Connect the provided Type-C cable to the charging port on the device and to a compatible power source. A full charge typically takes 2-3 hours. Ensure the power source current is below 2A.
- Attaching the Needle Cartridge: Gently push the desired needle cartridge into the machine's front opening until it clicks securely into place.
- Adjusting Needle Depth: Rotate the grip of the machine to adjust the needle depth to your preference.


3. Operating Instructions
- Power On/Off: Press and hold the power button (usually the central 'M' button or a dedicated power button) to turn the machine on or off.
- Adjusting Voltage: Use the '+' and '-' buttons on the side of the machine to increase or decrease the operating voltage. The current voltage will be displayed on the screen.
- Switching Modes (M1, M2, M3): Long-press the 'M' button to cycle through different operating modes (M1, M2, M3). These modes may offer different performance characteristics or preset settings.
- Activating Strong-Start Mode: Double-click the 'M' button to activate the strong-start mode, indicated by a lightning bolt icon on the display. This provides an initial power boost for certain needle configurations or tattooing styles.
- Adjusting Stroke Length: The machine features 7 adjustable stroke lengths ranging from 2.4mm to 4.2mm. Rotate the designated part of the machine body to select the desired stroke length.
- Monitoring Display: The digital display provides real-time information including battery charge level, active mode (M1, M2, M3), strong-start mode status, dot poking status, current voltage, and usage time.


4. Maintenance
- Cleaning: After each use, thoroughly clean the machine, especially the grip and needle interface, using appropriate sterilization solutions. Ensure no liquids enter the internal electronic components.
- Lubrication: Periodically apply a small amount of machine lubricant to moving parts as recommended by professional tattoo equipment maintenance guidelines to ensure smooth operation and longevity.
- Storage: Store the tattoo machine in a clean, dry, and sterile environment away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device when the battery indicator is low.
5. Troubleshooting
- Machine Not Turning On: Ensure the battery is sufficiently charged. If the issue persists, try charging with a different Type-C cable and power adapter.
- Inconsistent Power/Performance: Check that the needle cartridge is properly seated. Verify the voltage setting on the display. Ensure the power source current is below 2A during charging.
- Needle Not Moving: Confirm the needle cartridge is correctly installed and not damaged. Check for any obstructions in the needle cylinder.
- Display Issues: If the display is not functioning correctly, try restarting the machine. If the problem continues, contact customer support.
6. Specifications
| Feature | Specification |
|---|---|
| Model | HM144 |
| Material | Aluminum Alloy |
| Output Voltage | 5-12V |
| Working Frequency | 10500 RPM (Note: 8V operation yields 8000 RPM) |
| Color | Black |
| Battery Capacity | 2300mAh |
| Charging Time | 2-3 Hours |
| Working Time | 5-8 Hours |
| Adjustable Strokes | 7 settings (2.4mm, 2.7mm, 3.0mm, 3.3mm, 3.6mm, 3.9mm, 4.2mm) |
| Dimensions (Approx.) | 17 cm (Length) x 14 cm (Width) x 6 cm (Height) |
| Weight (Approx.) | 0.394 kg |
| Commodity Quality Certification | CE |
7. User Tips
- Ergonomic Design: The machine features a new hand-slip anti-slip design, providing a comfortable grip for extended use without fatigue.
- Stable Operation: Benefit from quiet stability and a strong movement motor, ensuring consistent needle stability during tattooing.
- Durability: An aluminum alloy protective layer at the needle cylinder interface enhances wear resistance and ensures a tight connection.
- Battery Management: For longer sessions, consider having a backup power solution or ensuring the device is fully charged before use, as battery life can vary with voltage and usage intensity.
8. Warranty and Support
POSEIDON is committed to providing high-quality products. For any inquiries, technical support, or warranty claims, please refer to the seller's contact information or the platform's customer service channels.
The product is covered by a Return & Refund policy and is certified as Original, ensuring quality and authenticity.





