Introduction
The Ambition MARS-U Wireless Tattoo Machine is a high-performance rotary cartridge tattoo pen designed for professional tattoo artists. It features an adjustable stroke length, a powerful coreless motor, and a digital LED display for precise control during tattooing. This manual provides essential information for the safe and effective use, setup, operation, and maintenance of your MARS-U tattoo machine.

Figure 1: Ambition MARS-U Wireless Tattoo Machine
Safety Information
For external use only. Avoid contact with eyes. Keep away from naked flame.
Always ensure proper sterilization of all equipment and follow local health and safety regulations for tattooing procedures. This device is intended for use by trained and certified tattoo professionals.
Product Features
- Material: Constructed from aluminum alloy frame with CNC carving.
- Dimensions: Length: 137mm (5.39 inches), Diameter: 32mm (1.25 inches), Weight: 217g (7.65oz).
- Detachable Design: The machine is fully detachable for easy disassembly, maintenance, and replacement of spare parts.
- Adjustable Stroke: Offers 6 adjustable stroke lengths: 2.2mm, 2.6mm, 3.0mm, 3.4mm, 3.8mm, and 4.2mm. Stroke length can be changed by turning the adjustment knob.
- Motor: Built-in coreless motor, 12V - 10500RPM, providing powerful performance with low skin loss and fast coloring. Designed for long working sessions without overheating.
- Eccentric Wheel System: Enhances machine strength and performance for both lining and shading.
- Needle Positioning: Features a built-in stainless steel high-grade positioning steel ball for accurate needle position adjustment.
- Battery: 1800mAh capacity, supporting long-term tattoo work with stable output. Approximately 6 hours of working time at 8V output voltage. Full charge in 1.5-2 hours.
- Digital LED Display: Visible LCD display shows working time, voltage, and remaining power.
- Voltage Adjustment: Short press '+' or '-' buttons for 0.1V adjustments. Working voltage range is 5-12V.
- Compatibility: Compatible with most cartridge needle types.

Figure 2: Machine Dimensions and Components

Figure 3: Adjustable Stroke Lengths

Figure 4: Battery Capacity and Performance

Figure 5: Digital LED Display

Figure 6: Wireless and Wired Operation

Figure 7: Versatility for Various Tattoo Styles
Setup
1. Charging the Battery
Before initial use, fully charge the machine's battery. Connect the provided charging cable to the USB-C port on the battery and plug it into a 5V/2A charging adapter. The LED display will indicate charging status and battery level. A full charge typically takes 1.5-2 hours.
2. Assembling the Machine
- Ensure the machine is clean and sterilized.
- If using the wireless battery, ensure it is securely attached to the machine body.
- Alternatively, if using a wired setup, attach the RCA adapter to the machine body and connect your RCA cable.
3. Installing the Needle Cartridge
- Select the appropriate cartridge needle for your work.
- Gently push the cartridge needle into the machine's grip until it clicks securely into place.
- Twist the grip to adjust the needle depth as required.
Operating Instructions
Power ON/OFF
- To power ON/OFF: Long press the "O" key for 3 seconds.
Output Pause/Resume
- To pause the output: Short press the "O" key.
- To resume the output: Short press the "O" key again. The machine will resume at the working voltage before the pause.
Adjusting Output Voltage
- To adjust voltage: Press the "+" or "-" key. Each short press adjusts the voltage by 0.1V.
- Long press the "+" or "-" key for faster voltage adjustments (0.5V increments).
- The working voltage range is 5-12V.
Adjusting Stroke Length
- The stroke length can be adjusted by rotating the gold ring on the machine body. Align the desired stroke length (2.2mm, 2.6mm, 3.0mm, 3.4mm, 3.8mm, or 4.2mm) with the indicator dot.
Video 1: Ambition MARS-U Wireless Tattoo Pen with Adjustable Stroke. This video demonstrates the adjustable stroke feature and overall operation of the machine.
Video 2: Ambition Mars-U Machine Tattoo Daily Practise. This video shows the machine in practical use during a tattooing session.
Video 3: Ambition Mars-U wireless tattoo machine show. This video highlights various features and the overall design of the wireless tattoo machine.
Video 4: Ambition Mars-U Wireless Tattoo Machine Tattoo Show. A short demonstration of the machine's performance during a tattoo session.
Maintenance
Cleaning and Sterilization
- The Ambition MARS-U is designed to be detachable, allowing for thorough cleaning. Disassemble the machine after each use.
- Clean all external surfaces with a suitable disinfectant wipe.
- Ensure all components that come into contact with ink or bodily fluids are properly sterilized according to industry standards and local regulations.
- Do not immerse the motor or battery components in liquid.
Storage
- Store the machine in a clean, dry place, away from direct sunlight and extreme temperatures.
- When not in use for extended periods, ensure the battery is partially charged (around 50%) to prolong its lifespan.
Troubleshooting
- Machine not turning on: Check if the battery is charged. Ensure the battery or RCA adapter is securely connected.
- Inconsistent power/performance: Verify the battery charge level. Ensure the needle cartridge is correctly seated and not damaged. Check for any loose connections if using the RCA adapter.
- Unusual noise or vibration: Disassemble the machine and check for any foreign objects or misaligned parts. Ensure the stroke adjustment mechanism is clean and functioning smoothly.
- Display not working: Try recharging the battery. If the issue persists, contact customer support.
Technical Specifications
| Specification | Detail |
|---|---|
| Product Dimensions | 7.1 x 5.2 x 2.4 inches |
| Weight | 14.08 ounces (217g for the pen) |
| Material | Aluminum Alloy |
| Stroke Lengths | 2.2mm, 2.6mm, 3.0mm, 3.4mm, 3.8mm, 4.2mm |
| Motor | Coreless Motor, 12V - 10500RPM |
| Battery Capacity | 1800mAh |
| Working Voltage | 5-12V |
| Charging Time | 1.5-2 hours |
| Working Time (8V) | Approx. 6 hours |
| Display | Digital LED |
| Water Resistance Level | Water Resistant |
Warranty and Support
Specific warranty information and detailed support contacts are not provided in the available product data. Please refer to the product packaging or the manufacturer's official website for the most up-to-date warranty terms and customer support options.




