1. Introduction
This manual provides detailed instructions for the safe and effective use of your Ambition MARS-U Wireless Tattoo Machine. Please read this manual thoroughly before operating the device to ensure proper function and longevity.
The Ambition MARS-U is a rotary cartridge tattoo machine pen designed for professional tattoo artists. It features an adjustable stroke length, a coreless motor, and a digital LED display for precise control.

Image 1.1: The Ambition MARS-U Wireless Tattoo Machine, showcasing its sleek design and digital display.
2. Safety Information
Important Safety Precautions:
- For professional use only.
- Avoid contact with eyes.
- Keep away from open flames or excessive heat.
- Ensure the device is properly sterilized and maintained according to industry standards before each use.
- Always use appropriate personal protective equipment (PPE) during operation.
3. Package Contents
The Ambition MARS-U Wireless Tattoo Machine package includes the following items:
- 1x Battery Tattoo Pen (Ambition MARS-U)
- 1x Extra Battery
- 1x RCA Adapter
- 1x Charging Cable
- 1x Storage Box
4. Product Specifications
| Feature | Specification |
|---|---|
| Material | Aluminium alloy frame, CNC carved |
| Length | 137mm (5.39 inches) |
| Diameter | 32mm (1.25 inches) |
| Weight | 217g (7.65 oz) |
| Adjustable Stroke Lengths | 2.2mm, 2.6mm, 3.0mm, 3.4mm, 3.8mm, 4.2mm |
| Motor | Coreless motor, 12V - 10500RPM |
| Battery Capacity | 1800mAh |
| Charging Time | Approx. 1.5-2 hours |
| Working Time (8V output) | Approx. 6 hours |
| Working Voltage | 5-12V |
| Voltage Adjustment Interval | ±0.1V (short press), ±0.5V (long press) |
| Water Resistance Level | Water Resistant |

Image 4.1: Detailed dimensions and weight of the Ambition MARS-U Wireless Tattoo Machine and its components, including the battery and RCA adapter.
5. Setup
5.1 Charging the Battery
- Connect the provided charging cable to the charging port on the battery.
- Connect the other end of the charging cable to a 5V/2A charging adapter (not included).
- The LCD display will indicate charging status. A full charge typically takes 1.5-2 hours.

Image 5.1: Illustration of the battery unit with charging time, working time, and capacity details.
5.2 Attaching Cartridge Needles
- Ensure the machine is powered off.
- Insert the desired cartridge needle into the machine's grip. The machine is compatible with most cartridge needle types.
- Twist the grip to secure the cartridge in place.
Video 5.1: This video demonstrates the process of attaching a cartridge needle to the Ambition MARS-U Wireless Tattoo Pen and adjusting its stroke length.
5.3 Adjusting Stroke Length
The MARS-U offers 6 adjustable stroke lengths: 2.2mm, 2.6mm, 3.0mm, 3.4mm, 3.8mm, and 4.2mm. To adjust the stroke length, simply turn the adjustment knob located on the machine body. This allows for versatility across various tattooing techniques, including soft black and grey, color packing, blending, and lining.

Image 5.2: Close-up view of the Ambition MARS-U showing the markings for its 6 adjustable stroke lengths, ranging from 2.2mm to 4.2mm.
5.4 Wired Operation (RCA Adapter)
For continuous operation or when the battery is depleted, the MARS-U can be used with the included RCA adapter. Simply detach the battery unit and attach the RCA adapter to the machine body. Connect your standard RCA cable and power supply (not included) to the adapter.

Image 5.3: Comparison of the Ambition MARS-U in both wireless (battery-powered) and wired (RCA adapter) configurations.
6. Operating Instructions

Image 6.1: Close-up of the Ambition MARS-U's digital LED display and control buttons, indicating battery, timing, voltage, and power controls.
6.1 Power ON/OFF
- To power ON, long press the 'O' (Power) button for 3 seconds.
- To power OFF, long press the 'O' (Power) button for 3 seconds.
6.2 Adjusting Voltage
- The working voltage range is 5-12V.
- Short press the '+' or '-' buttons to adjust the voltage in increments of 0.1V.
- Long press the '+' or '-' buttons for faster adjustment in increments of 0.5V.
- The current voltage is displayed on the LCD screen.
Video 6.2: This video demonstrates the Ambition MARS-U machine in daily tattoo practice, showcasing its performance and ease of use.
6.3 Output Pause/Resume
- To pause the output, short press the 'O' (Power) button.
- To resume output, short press the 'O' (Power) button again. The machine will resume at the previously set voltage.
6.4 Needle Depth Adjustment
The needle depth can be precisely adjusted by rotating the grip of the machine. The built-in stainless steel high-grade positioning steel ball ensures accurate gear position adjustments.
6.5 Versatility for Tattoo Styles
The Ambition MARS-U is designed to support various tattooing styles. Its adjustable stroke lengths and powerful coreless motor make it suitable for:
- Soft black and grey shading
- Packing color
- Blending
- Lining

Image 6.2: An illustration highlighting the versatility of the Ambition MARS-U for different tattoo styles, including lining, shading, and color packing.
7. Maintenance
7.1 Cleaning and Sterilization
The Ambition MARS-U machine is detachable as a whole, making it easy to disassemble, maintain, and replace spare parts. Regular cleaning and sterilization are crucial for hygiene and device longevity.
- Always disconnect the power before cleaning.
- Disassemble the machine components carefully.
- Clean all external surfaces with a suitable disinfectant wipe.
- Follow professional sterilization protocols for all parts that come into contact with skin or ink.
- Ensure all parts are completely dry before reassembly.
7.2 Storage
Store the tattoo machine and its components in the provided storage box in a clean, dry environment, away from direct sunlight and extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Machine does not turn on. | Low battery or power issue. | Charge the battery fully. Ensure the power button is long-pressed for 3 seconds. If using wired, check RCA cable and power supply connection. |
| Inconsistent needle movement. | Improperly seated cartridge needle or incorrect stroke setting. | Ensure the cartridge needle is securely inserted. Verify the stroke length setting is appropriate for the task. |
| Machine feels hot during operation. | Prolonged high voltage use or motor strain. | Reduce voltage if possible. Allow the machine to cool down. If the issue persists, contact support. |
| Difficulty adjusting needle depth. | Grip mechanism obstruction or damage. | Check for any debris or obstruction in the grip mechanism. Ensure the grip is not overtightened. |
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact Ambition customer service through the retailer where the product was purchased or visit the official Ambition website.
Manufacturer: Ambition
Brand Store: Visit the Ambition Store on Amazon
10. Additional Resources
10.1 Product Demonstration Videos
Ambition Mars-U Machine Tattoo Daily Practise:
Description: This video demonstrates the Ambition MARS-U machine in daily tattoo practice, showcasing its performance and ease of use.
Ambition Mars-U Wireless Tattoo Machine Show:
Description: A visual presentation of the Ambition MARS-U wireless tattoo machine, highlighting its features and design.
Ambition Mars-U Wireless Tattoo Machine Tattoo Show:
Description: A brief demonstration of the Ambition MARS-U wireless tattoo machine in action, showing its application during a tattoo session. (Note: This is a 9-second preview video.)




