1. Product Overview
The KEMEI KM-1900 is a versatile, rechargeable trimmer designed for precise eyebrow and facial hair removal. Its compact and ergonomic design allows for comfortable handling and effective trimming. This device supports both wet and dry operation, offering flexibility for various grooming routines. It features a dual sharp blade system and comes with multiple comb attachments for different hair lengths.

Image 1.1: The KEMEI KM-1900 Eyebrow and Facial Trimmer, showcasing its ergonomic design and power button.
2. Safety Information
Please read all safety instructions before using the appliance. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Exercise caution when handling the sharp blades to prevent cuts or injuries.
- Do not use the appliance near water or while bathing/showering when it is connected to an electrical power source for charging.
- Keep the device out of reach of children.
- Follow all cleaning and maintenance instructions carefully to prevent damage to the product and ensure safe operation.
- Ensure the charging port is dry before connecting the USB cable.
3. Package Contents
Upon opening the package, verify that all items are present and in good condition:
- KEMEI KM-1900 Eyebrow and Facial Trimmer
- 4 Trimming Combs (1mm, 2mm, 4mm, 6mm)
- USB Charging Cable
- Cleaning Brush (typically included with trimmers)
- User Manual (this document)

Image 3.1: The KEMEI KM-1900 Trimmer shown with its four included comb attachments.
4. Product Features
- Ergonomic Design: Features a non-slip rubber handle for secure and comfortable grip.
- Convenient USB Charging: Easily recharge the device using a standard USB port.
- Dual Sharp Blade: Equipped with a high-quality stainless steel dual blade for efficient and precise trimming.
- Wet & Dry Operation: Suitable for use on dry skin or with water, foam, or gel for added comfort.
- Multiple Trimming Combs: Includes 4 combs (1mm, 2mm, 4mm, 6mm) for customizable hair length.
- Targeted for Women: Designed for delicate facial and body hair trimming.
5. Setup and Initial Use
- Unpack: Carefully remove all components from the packaging.
- Initial Charge: Before first use, fully charge the trimmer. Refer to the "Charging the Device" section for detailed instructions.
- Attach Comb (Optional): Select the desired trimming comb (1mm, 2mm, 4mm, or 6mm). Align the comb with the trimmer head and gently push it until it clicks into place. To remove, gently pull the comb away from the trimmer head.
- Clean: Ensure the trimmer head is clean and free of debris before use.
6. Charging the Device
The KEMEI KM-1900 features a convenient USB charging port.
- Ensure the trimmer is switched off before charging.
- Locate the USB charging port on the device.
- Insert the small end of the provided USB charging cable into the trimmer's port.
- Connect the larger end of the USB cable to a compatible USB power source (e.g., computer, USB wall adapter, power bank).
- A charging indicator light will illuminate, typically red, to show that the device is charging.
- Note: The charging indicator light may not change color or turn off when the battery is fully charged. Monitor charging time to avoid overcharging. A full charge typically takes approximately 8 hours for the first use, and 2-3 hours for subsequent charges.
- Once charging is complete, disconnect the USB cable from both the power source and the trimmer.
7. Operating Instructions
Follow these steps for effective and safe trimming:
- Prepare Skin: Ensure your skin is clean. For dry trimming, ensure skin is completely dry. For wet trimming, you may use water, shaving foam, or gel.
- Select Comb (Optional): Attach the desired trimming comb for specific hair lengths (1mm, 2mm, 4mm, or 6mm). For a closer trim, use without a comb.
- Power On: Press the power button to turn on the trimmer.
- Trimming Technique:
- Hold the trimmer at a slight angle against the skin.
- Gently move the trimmer against the direction of hair growth.
- For eyebrows, use short, controlled strokes. Use the smaller comb attachments for precise shaping.
- For facial hair, stretch the skin taut with your free hand to ensure a smooth surface.
- Avoid applying excessive pressure to prevent irritation or cuts.
- Wet & Dry Use: The KM-1900 is designed for both wet and dry use. For wet use, ensure the device is not connected to the charging cable.
- Power Off: After use, press the power button to turn off the trimmer.
8. Maintenance and Cleaning
Regular cleaning ensures optimal performance and extends the lifespan of your trimmer.
- Turn Off: Always ensure the trimmer is switched off and disconnected from the charging cable before cleaning.
- Remove Comb: Detach any attached trimming comb.
- Brush Cleaning: Use the provided cleaning brush to remove loose hairs from the trimmer head and blades.
- Rinsing (Wet Cleaning): Since the device is wet & dry, the trimmer head can be rinsed under running water. Ensure water does not enter the charging port. Do not submerge the entire device.
- Drying: After rinsing, shake off excess water and allow the trimmer head to air dry completely before reattaching combs or storing.
- Blade Care: Periodically, a small drop of lubricating oil (not included, but commonly available for trimmers) can be applied to the blades to maintain smooth operation.
- Storage: Store the trimmer in a cool, dry place, away from direct sunlight and out of reach of children.
9. Troubleshooting
If you encounter issues with your KEMEI KM-1900 trimmer, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Trimmer does not turn on. | Battery is depleted. | Charge the trimmer fully using the provided USB cable. |
| Poor trimming performance or pulling hair. | Blades are clogged with hair or dull. | Clean the trimmer head and blades thoroughly. If blades are dull, consider replacing the trimmer head if available, or contact support. |
| Trimmer stops working shortly after charging. | Battery not holding charge or faulty. | Ensure proper charging procedure. If the issue persists, the battery may be faulty. Contact customer support. |
| Charging indicator light does not change. | This model's indicator may not change color upon full charge. | Refer to the estimated charging times in Section 6. Disconnect after the recommended duration. |
10. Specifications
- Model Number: KM-1900
- Brand: KEMEI
- Power Source: Battery Powered (Rechargeable via USB)
- Operating Function: Wet & Dry
- Number of Heads: 1
- Number of Speed Settings: 1
- Blade Material: Stainless Steel
- Targeted Group: Women
- Package Dimensions: Approximately 22.1 x 9.7 x 4.8 cm
- Item Weight: Approximately 0.3 Kilograms
- Batteries: 1 Product Specific battery required (included)
- Date First Available: 5 July 2019
11. Warranty and Support
Specific warranty details for the KEMEI KM-1900 are not provided within this manual. For warranty claims, technical support, or inquiries regarding replacement parts, please refer to the product packaging or contact the retailer or manufacturer directly. Keep your proof of purchase for any warranty-related services.