Braun MGK7421
Braun Series 7 MGK7421 10-in-1 Multi-Grooming Trimmer
Model: MGK7421
Product Overview
The Braun Series 7 MGK7421 is a versatile 10-in-1 multi-grooming trimmer designed for comprehensive head-to-toe styling. This all-in-one kit is perfect for beard trimming, hair clipping, detailing, and body grooming. Featuring an ultra-sharp metal blade, AutoSense technology that adapts to hair density, and a powerful Li-Ion battery providing 100 minutes of cordless runtime, it offers effortless and precise grooming for all hair types.

Image: The Braun Series 7 MGK7421 10-in-1 Multi-Grooming Trimmer, showcasing its versatility for complete head-to-toe styling. The image features the trimmer alongside its various attachments, with a man's face in the background.
What's in the Box
Your Braun Series 7 MGK7421 Multi-Grooming Trimmer package includes the following components:
- 1 Trimmer Unit
- 1 Metal Trimmer Attachment
- 1 Body Groomer Attachment
- 1 Detail Trimmer Head
- 1 Ear & Nose Trimmer
- 1 Sliding Beard Comb (3-11 mm)
- 1 Sliding Hair Comb (13-21 mm)
- 1 Fixed Comb (1 mm)
- 1 Fixed Comb (2 mm)
- 1 Sensitive Comb
- 1 Gillette ProGlide Razor
- 1 Replacement Gillette ProGlide Blade
- 1 Cleaning Brush
- 1 Charging Stand
- 1 Storage Pouch

Image: A visual representation of the Braun Series 7 MGK7421 kit contents, including the trimmer and its various attachments.
Setup
Before first use, or if the device has not been used for a long period, ensure it is fully charged.
- Connect the charging stand or power cord directly to the trimmer and plug it into a suitable power outlet.
- Allow the device to charge until the battery indicator shows a full charge (typically 1 hour for 100 minutes of runtime).
- Once charged, disconnect the device from the power source.
Operating Instructions
Follow these steps for effective grooming with your Braun Series 7 MGK7421:
- Charge the device: Ensure your trimmer is adequately charged before use to maintain consistent power.
- Select the appropriate head: Choose the specific trimmer head and comb attachment that suits your desired grooming style and hair length (e.g., beard trimming, hair clipping, body grooming, or detailing).
- Adjust length settings: Utilize the AutoSense technology for automatic power adjustment based on hair density, or manually adjust the length settings on the sliding combs (3-11 mm or 13-21 mm) or fixed combs (1 mm, 2 mm) as needed.
- Begin trimming: Turn on the device. For best results, trim hair along the direction of hair growth. Use smooth, even strokes.
- Clean after use: After each use, turn off the device and clean it thoroughly as described in the Maintenance section.

Image: Demonstrations of the Braun Series 7 MGK7421 being used for beard trimming, body grooming, and hair clipping, highlighting its multi-functional capabilities.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your Braun trimmer.
- Cleaning: After each use, turn off the device. Remove the trimmer head and attachments. Rinse the head and combs under running water. Use the provided cleaning brush to remove any trapped hairs from the trimmer unit and attachments. The device is 100% waterproof, allowing for easy cleaning under running water.
- Drying: Allow all parts to air dry completely before reassembling or storing.
- Lubrication: Periodically apply a small drop of light machine oil (not included, but often recommended for trimmers) to the blades to maintain smooth operation and prevent wear.
- Storage: Store the trimmer and its attachments in the provided storage pouch in a dry place, away from direct sunlight and extreme temperatures.

Image: A close-up view of the ultra-sharp metal blade of the Braun trimmer, emphasizing the importance of regular cleaning and maintenance for optimal performance.
Safety Warnings
To ensure safe operation and prevent injury, please adhere to the following safety guidelines:
- Water Safety: Caution: Keep the device away from water sources when charging or not in use to prevent electrical hazards. Although the device is waterproof for cleaning, ensure it is completely dry before charging.
- Children: Do not use the device on infants or young children. Keep the device and its attachments out of reach of children.
- Proper Use: Use the device only for its intended purpose as described in this manual.
- Maintenance: Clean and maintain the device strictly according to the instructions provided to avoid injury and ensure proper functioning.
- Damage: Do not use the device if it is damaged, or if the blades are broken or bent, as this may cause injury. Contact customer support for repairs.
- Attachments: Only use attachments supplied or recommended by Braun.
Troubleshooting
If you encounter issues with your Braun Series 7 MGK7421, refer to the following common troubleshooting tips:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery; device not charged. | Charge the device fully. Ensure the charging cable is properly connected. |
| Trimmer performance is poor or pulls hair. | Blades are dull or clogged with hair; insufficient lubrication. | Clean the blades and trimmer head thoroughly. Apply a drop of oil to the blades. If issues persist, consider replacing the blade attachment if available. |
| Device makes unusual noise. | Hair trapped inside; attachment not properly secured. | Clean the device thoroughly. Ensure all attachments are securely fastened. |
| Battery life is shorter than expected. | Battery not fully charged; aging battery. | Ensure the device is fully charged before each use. Over time, battery capacity may decrease. |
If the problem persists after attempting these solutions, please contact Braun customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | Braun |
| Model Number | MGK7421 |
| Product Dimensions (L x W x H) | 16 x 5.7 x 28.2 cm (6.3 x 2.2 x 11.1 inches) |
| Item Weight | 420 Grams (0.93 lbs) |
| Power Source | Battery Powered (Li-Ion) |
| Battery Life | Up to 100 minutes |
| Blade Material | Stainless Steel |
| Color | Black/Deep Blue |
| Recommended Uses | Beard, Body, Nose, Ear, Head |
| Special Feature | AutoSense Technology, 100% Waterproof |
| Country of Origin | China |
Warranty and Support
Braun products are manufactured to meet high quality standards. This product comes with a manufacturer's warranty, typically covering defects in materials and workmanship for a specified period from the date of purchase. Please refer to the warranty card included in your product packaging for specific terms and conditions, including the warranty period and how to make a claim.
For technical support, replacement parts, or warranty service, please visit the official Braun website or contact their customer service department. Contact information can usually be found on the Braun website or in the product documentation.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.