MAXGROOM JK-1688
MAXGROOM 7D Head Shaver User Manual
Model: JK-1688
1. Introduction
Thank you for choosing the MAXGROOM 7D Head Shaver. This manual provides essential information for the safe and effective use, maintenance, and care of your new electric shaver. Please read it thoroughly before first use and keep it for future reference.
Important Safety Information
- May cause cuts or skin irritation. Always use with care.
- Always clean the shaver after each use to prevent bacterial growth and maintain hygiene.
- Do not use the shaver while it is connected to the charging cable.
- Avoid using the shaver near water sources if not specifically designed for wet use (this model is IPX6 waterproof, but caution is always advised).
- Keep out of reach of children.
- Do not disassemble or attempt to repair the shaver yourself. Contact customer support for assistance.
2. Product Overview
The MAXGROOM 7D Head Shaver is designed for a close and comfortable shaving experience, featuring flexible blades and a waterproof design.

Figure 2.1: MAXGROOM 7D Head Shaver with its charging base. The shaver features a multi-blade head for comprehensive coverage.
Key Features
- 7D Rotary Blades: Upgraded design for a 0.10mm ultra-close shave, adapting to head contours.
- Dual-Speed Customization: Two speed settings for gentle or powerful shaving, suitable for various hair types.
- Ergonomic Grip: Designed for comfortable and precise handling.
- IPX6 Waterproof: Suitable for wet or dry use, including in the shower.
- Magnetic Detachable Blades: Allows for fast and thorough cleaning.
- Cordless & Rechargeable: Long battery life with convenient Type-C charging.
- LED Display: Shows battery percentage and RPM.

Figure 2.2: Visual representation of the shaver's key features, including the floating cutter head, large diameter blades, Type-C charging port, IPX6 waterproof rating, LED display, and ergonomic design.
3. Setup
3.1 Initial Charging
- Before first use, fully charge the shaver.
- Connect the Type-C charging cable to the shaver's charging port and plug the other end into a compatible USB power adapter (not included).
- The LED display will show the charging progress. A full charge typically takes approximately 2 hours.
- Once fully charged, the display will indicate 100%. Disconnect the shaver from the charger.

Figure 3.1: The shaver connected to a Type-C charging cable, displaying battery percentage and RPM on its LED screen.
3.2 Attaching/Detaching Shaving Head
- The shaver head is attached magnetically for easy removal and cleaning.
- To detach, gently pull the shaving head upwards from the shaver body.
- To attach, align the shaving head with the shaver body and allow the magnets to secure it in place. Ensure it clicks firmly.

Figure 3.2: The magnetic shaving head separated from the shaver body, illustrating the ease of detachment for cleaning.
4. Operation
4.1 Basic Shaving Instructions
- Ensure your shaver is fully charged before use.
- Press the power button to turn on the shaver.
- Gently press the shaver head against your skin and move it in small, circular motions.
- Allow the flexible 7D blades to contour to your head or face for an even shave. Avoid excessive pressure, as this can reduce efficiency and cause irritation.
- For optimal results, shave against the grain of your hair growth.
- After shaving, press the power button to turn off the shaver.

Figure 4.1: A hand demonstrating the ergonomic grip of the MAXGROOM 7D Head Shaver, designed for comfortable and precise control.
4.2 Wet and Dry Shaving
The MAXGROOM 7D Head Shaver is IPX6 waterproof, allowing for both wet and dry shaving.
- Dry Shaving: Ideal for quick touch-ups or daily maintenance. Ensure skin is clean and dry.
- Wet Shaving: For a smoother, more comfortable shave, use with shaving cream, gel, or foam. This can also help reduce skin irritation. The shaver can be used safely in the shower.

Figure 4.2: A user demonstrating the shower-safe use of the MAXGROOM 7D Head Shaver, highlighting its waterproof capability.

Figure 4.3: Illustrates the versatility of the shaver for both dry shaving (left) and wet shaving in the shower (right).
4.3 Speed Settings
The shaver offers two speed modes to customize your shaving experience:
- Low Speed (6600 RPM): Provides a gentle, irritation-free shave, ideal for sensitive skin or finer hair.
- High Speed (7000 RPM): Delivers powerful cutting action for coarser or thicker hair, ensuring a fast and efficient shave.
To switch between speeds, press the power button briefly while the shaver is on.

Figure 4.4: The shaver's LED display showing the two available speed modes: 6600 RPM for gentle precision and 7000 RPM for maximum power.
5. Maintenance
5.1 Cleaning the Shaver
Regular cleaning ensures optimal performance and hygiene. The magnetic detachable blade system makes cleaning effortless.
- Ensure the shaver is turned off and disconnected from any charging cable.
- Gently pull the shaving head upwards to detach it from the shaver body.
- Rinse the shaving head and the internal hair compartment under running water until all hair clippings are removed.
- Shake off excess water and allow both parts to air dry completely before reattaching the head.
- Do not use harsh chemicals or abrasive cleaners on any part of the shaver.

Figure 5.1: The shaver head and body shown with water, emphasizing its IPX6 waterproof rating for easy rinsing.

Figure 5.2: A visual guide to cleaning the shaver: lift off the magnetic blade head, rinse the blade and hair chamber under water, and then let it air dry.
5.2 Blade Replacement
For continued optimal performance, it is recommended to replace the shaving head every 6-12 months, depending on usage and hair type. Replacement heads can be purchased from authorized MAXGROOM retailers.
6. Troubleshooting
If you encounter any issues with your MAXGROOM 7D Head Shaver, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Shaver does not turn on. | Battery is depleted. | Charge the shaver fully using the provided Type-C cable. |
| Poor shaving performance / pulling hair. | Blades are dull or clogged with hair. | Clean the shaving head thoroughly. Consider replacing the shaving head if blades are dull. |
| Motor seems weak or bogs down. | Low battery or excessive pressure. | Ensure the shaver is fully charged. Apply less pressure during shaving. If the issue persists, contact customer support. |
| Battery drains quickly or shows incorrect percentage. | Potential battery issue. | MAXGROOM has proactively addressed potential battery issues. If you experience this, please contact customer support via Amazon's messaging system for assistance. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | JK-1688-US |
| Power Source | Battery Powered |
| Special Features | Battery Indicator, Cordless, Dry Shave, Ergonomic Design, Fast Charging, Wet Use |
| Recommended Uses | Beard, Face, Mustache, Scalp, Head |
| Brand | MAXGROOM |
| Item Model Number | JK-1688 |
| Batteries | 1 CR5 battery required (included) |
| Package Dimensions | 4.21 x 3.98 x 3.98 inches; 7.76 ounces |
8. Warranty and Support
8.1 Warranty Information
The MAXGROOM 7D Head Shaver comes with a 2-year warranty, covering manufacturing defects and ensuring quality performance. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For any questions, concerns, or warranty claims, please contact MAXGROOM customer support through Amazon's messaging system. Our team is available to provide assistance and ensure your satisfaction.
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