1. Product Overview
The KEMEI KM-5021 is a versatile cordless hair clipper and trimmer designed for men. Its rechargeable nature eliminates the need for disposable batteries, offering convenience and consistent performance. Equipped with reinforced cutting guards and secure-fit guide combs, it provides a smooth and easy haircutting experience for various styling needs.
2. What's Included
- 1 x KEMEI KM-5021 Hair Clipper Trimmer
- 1 x Wall Charger
- 1 x User Manual/Instructions
- 1 x Maintain Oil
- 1 x Cleaning Brush
- 3 x Trimming Guards (1mm, 2mm, 3mm)
- 1 x Protection Cover
3. Key Features
- Cordless & Rechargeable Design: Offers freedom of movement and eliminates battery replacement.
- Ultra-Thin Blade: Leaves 0.1mm for a close cut, suitable for engraving and precise detailing.
- Secure-Fit Guide Combs: Includes 1mm, 2mm, and 3mm combs with stainless steel attachment clips for consistent cutting lengths.
- High-Quality Blades: Made from durable stainless steel for sharp and efficient cutting.
- Ergonomic & Compact Body: Designed for comfortable, one-handed use with an anti-slip diamond pattern on the back.
- USB Quick Charging: Convenient charging via USB adapter or power bank.
- 30° Cutting Technology: Ensures a safe and effective haircut.
4. Setup
4.1 Initial Charging
Before first use, fully charge the trimmer for approximately 8 hours. Connect the provided USB charging cable to the trimmer and a compatible USB power source (e.g., wall charger, power bank). The charging indicator light will illuminate.

Figure 1: USB Quick Charging Method. The trimmer can be charged via a USB power bank or adapter.
4.2 Attaching Guide Combs
Select the desired trimming guard (1mm, 2mm, or 3mm) based on your preferred hair length. Align the comb with the trimmer blade and gently push until it clicks securely into place. Ensure the comb is firmly attached before operating the trimmer.

Figure 2: Professional Limit Combs. Three different lengths are available for various trimming needs.
5. Operating Instructions
5.1 General Trimming
- Ensure the trimmer is fully charged.
- Attach the appropriate guide comb for your desired hair length. For very close cuts or detailing, the trimmer can be used without a comb (0.1mm).
- Turn on the trimmer using the power button.
- Hold the trimmer against the hair, moving it slowly and steadily against the direction of hair growth.
- For best results, keep the trimmer close to your skin.

Figure 3: Safe and Easy Haircut. Features like 30° cutting technology and ergonomic design enhance user experience.
5.2 Detailing and Edging
For precise lines, edging, or intricate designs, remove the guide comb. Use the ultra-thin blade directly against the skin, moving carefully to create sharp, clean lines. The compact body design allows for easy maneuverability.

Figure 4: Ultra-Thin, Ultra-Short Pitch Blade. Ideal for precise detailing and close cuts.

Figure 5: Compact Body Design. Small and comfortable for single-handed operation.
6. Maintenance
6.1 Cleaning
- Always unplug the trimmer from the power source before cleaning.
- Use the provided cleaning brush to remove any loose hairs from the blades and the trimmer body.
- Do not immerse the trimmer in water. Avoid contact with water.
6.2 Oiling the Blades
After cleaning, apply a small drop of the provided maintain oil to the blades. Turn on the trimmer for a few seconds to allow the oil to distribute evenly. This helps maintain blade sharpness and prolongs the life of the trimmer.
7. Troubleshooting
7.1 Hair Pulling Issue
If the trimmer pulls hair during use, ensure it is fully charged. Also, try holding the trimmer closer to your skin while operating. This often resolves the issue.
8. Safety Information
- Always use the trimmer after fully charging.
- Keep it close to your skin while using for optimal performance.
- Avoid contact with water to prevent damage to the electrical components.
- Do not use on infants or children.
- Always unplug the trimmer from the power source before cleaning or maintaining.
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | 2M_KM-5021 |
| Power Source | Battery Powered (USB Rechargeable) |
| Charging Time | 8 hours |
| Battery Time | 60 minutes |
| Universal Voltage | 100-240V |
| Blade Material | Stainless Steel |
| Special Features | Self Sharpening, USB Rechargeable |
| Color | Purple |
| Item Weight | 0.24 Kilograms |
10. Warranty and Support
For warranty information or customer support, please refer to the contact details provided on the product packaging or the official KEMEI website. Keep your purchase receipt for any warranty claims.





