1. Introduction
Thank you for choosing the KEMEI KM-MAX5090 Professional Hair Clippers. This cordless electric trimmer is designed for precise hair and beard cutting, featuring a durable T-shaped carbon steel blade, an intuitive LCD display, and convenient USB charging. This manual provides essential information for safe operation, setup, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.

Figure 1.1: KEMEI KM-MAX5090 Hair Clipper in use, highlighting key features.
2. Safety Information
Please read all safety instructions carefully before using the appliance to reduce the risk of electric shock, injury, or fire.
- Avoid use on infants: This product is not intended for use on infants.
- Keep away from water: Do not use the appliance near or in water. If the appliance falls into water, do not reach for it. Unplug immediately.
- Cleaning and Maintenance: Follow recommended cleaning and maintenance procedures as outlined in this manual. Ensure the appliance is unplugged before cleaning.
- Power Source: Use only the provided USB charging cable. Ensure the power source matches the specifications.
- Blade Care: Handle blades with care. Do not use if blades are damaged or bent.
- Storage: Store the appliance in a dry place, out of reach of children.
Legal Disclaimer: Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition. This product is a personal grooming device.
3. Package Contents
Upon opening the package, please verify that all the following items are included:
- KEMEI KM-MAX5090 Hair Clipper
- USB Charging Cable (Type-C)
- Cleaning Brush
- Hair Comb
- Storage Pouch
- 6 Guide Combs: 1mm, 2mm, 3mm, 6mm, 9mm, 12mm

Figure 3.1: Contents of the KEMEI KM-MAX5090 package.

Figure 3.2: Detailed view of the KEMEI KM-MAX5090 clipper and its guide combs.
4. Product Features
The KEMEI KM-MAX5090 is engineered with advanced features for a superior grooming experience:
- Short Tooth Pitch Carving Head: The R-shaped design of the blade ensures precise cutting without irritating or hurting the skin.
- Professional Cordless Hair Trimmer: Equipped with a sharp T-shaped carbon steel cutter head for extremely close cutting. Includes 6 guide combs (1mm, 2mm, 3mm, 6mm, 9mm, 12mm) suitable for various styles including oil head, inch head, engraving, and gradient haircuts.
- LCD Display: The integrated LCD screen provides real-time information, displaying the remaining power percentage, charging prompts, and acceleration prompts, keeping you informed of the device's status.
- USB Charging: Features a new upgraded Type-C USB charging method, allowing convenient charging from various sources such as wall sockets, computers, and power banks. This enables true charge-and-use flexibility at any time.
- High-performance Lithium Battery: Powered by a 600 mAh lithium battery, offering super battery life. A full charge takes approximately 1.5 hours and provides up to 60 minutes of continuous use.

Figure 4.1: Close-up of the R-shaped blade design.

Figure 4.2: LCD display and USB-C charging port.

Figure 4.3: Illustration of the clipper's long-lasting battery.
5. Setup
5.1 Initial Charging
- Before first use, fully charge the clipper.
- Connect the Type-C end of the USB charging cable to the charging port on the bottom of the clipper.
- Connect the USB-A end of the cable to a compatible USB power source (e.g., wall adapter, computer, power bank).
- The LCD display will show charging progress. A full charge takes approximately 1.5 hours.
5.2 Attaching Guide Combs
- Ensure the clipper is turned off.
- Select the desired guide comb (1mm, 2mm, 3mm, 6mm, 9mm, or 12mm) based on the desired hair length.
- Align the guide comb with the clipper blade and push it firmly until it clicks into place.
- To remove, gently pull the comb away from the blade.
6. Operating Instructions
6.1 Basic Operation
- Ensure the clipper is charged and a guide comb is attached if desired.
- Press the power button to turn the clipper on. The LCD display will illuminate.
- Hold the clipper firmly and begin trimming. For best results, move the clipper against the direction of hair growth.
- Regularly clear hair from the blade during use to maintain optimal performance.
- After use, press the power button again to turn the clipper off.
6.2 Hair and Beard Trimming Tips
- For an even cut, always use a guide comb. Start with a longer comb length and gradually switch to shorter ones if needed.
- Ensure hair is clean and dry before trimming for smoother operation.
- Use the clipper for detailing, outlining, and creating sharp lines for beards and hairlines.
- For engraving or intricate designs, use the clipper without a guide comb, exercising extreme caution due to the close-cutting blade.

Figure 6.1: Examples of hair and beard styles achievable with the clipper.
7. Maintenance and Cleaning
Proper maintenance ensures the longevity and performance of your KEMEI KM-MAX5090 clipper.
7.1 Cleaning the Blades
- Turn off the clipper and disconnect it from the charging cable.
- Remove any attached guide comb.
- Use the provided cleaning brush to brush away loose hairs from the blade and the clipper body.
- For a more thorough cleaning, you may carefully detach the blade assembly (refer to specific instructions if available in the product packaging, otherwise proceed with caution).
- Do not rinse the entire clipper under water. The blades may be rinsed if specified as waterproof, but the main body is not.
7.2 Lubrication (Optional)
While not explicitly mentioned, it is generally recommended to periodically lubricate clipper blades with a drop or two of clipper oil to maintain smooth operation and prevent rust. Apply oil to the teeth of the blade and run the clipper for a few seconds to distribute the oil, then wipe off any excess.
7.3 Storage
Store the clipper and its accessories in the provided storage pouch or a dry, cool place away from direct sunlight and moisture.
8. Troubleshooting
If you encounter issues with your KEMEI KM-MAX5090 clipper, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Clipper does not turn on. | Battery is depleted. | Charge the clipper fully (approx. 1.5 hours). Check the LCD display for battery level. |
| Poor cutting performance / Pulling hair. | Blades are clogged with hair. Blades are dull or damaged. | Clean the blades thoroughly with the cleaning brush. Ensure hair is clean and dry before trimming. If blades are dull, consider professional sharpening or replacement if available. |
| Clipper not charging. | Charging cable or adapter faulty. Charging port dirty. | Try a different USB cable or power adapter. Ensure the charging port is free of debris. |
| Excessive noise or vibration. | Blades not properly aligned or lubricated. | Ensure blades are securely attached. Apply a small amount of clipper oil to the blades. |
If the problem persists after attempting these solutions, please contact customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | KM-MAX5090 |
| Product Dimensions | 5.23 x 1.96 x 1.57 inches |
| Item Weight | 0.27 Grams (approx. 0.01 ounces) |
| Battery Type | 1 Lithium Polymer battery (included) |
| Battery Capacity | 600 mAh |
| Charging Time | Approx. 1.5 hours |
| Usage Time | Approx. 60 minutes |
| Power Source | Battery Powered, Corded Electric, Rechargeable |
| Color | Graffiti |
| Recommended Uses | Beard, Hair |
10. Warranty and Customer Support
10.1 Limited Warranty
This KEMEI KM-MAX5090 Professional Hair Clipper comes with a standard return policy, typically allowing returns or replacements within 30 days of purchase, subject to the retailer's terms and conditions. Please retain your proof of purchase for any warranty claims.
10.2 Customer Support
For further assistance, technical support, or inquiries regarding your product, please refer to the contact information provided by your retailer or visit the official KEMEI store online. You can find more information about KEMEI products at the KEMEI Store on Amazon.





