Important Safety Information
- For safe use, keep away from eyes and ears.
- Do not ingest or inhale small parts.
- Recommended for adult use or under adult supervision.
- Do not immerse the main body of the trimmer in water for more than 30 minutes.
- Ensure the trimmer is switched off before cleaning or changing attachments.
Product Overview
The SUPRENT GK215BX is a versatile 16-in-1 grooming kit designed for comprehensive personal care. It includes multiple detachable trimming heads and guide combs to cater to various grooming needs, from facial hair to body hair.
What's Included

Image: All 16 pieces of the SUPRENT grooming kit, including the main trimmer unit, various heads, guide combs, and accessories, neatly arranged.
- Main Trimmer Unit: The core device with an LED display for battery life.
- 6 Detachable Trimming Heads: Full size trimmer, adjustable guard, shaver, nose/ear trimmer, precision detailer, and grooming trimmer.
- 5 Guide Combs: Various sizes for different hair lengths and styles.
- Accessories: Cleaning brush, blade oil, USB charging cable, and a storage bag.
Setup
Charging the Trimmer
Before first use, fully charge the trimmer. The LED display will show the battery percentage. A full charge takes approximately 90 minutes and provides up to 1.5 hours of trimming time.

Image: The SUPRENT trimmer being charged, with an overlay indicating '90 Minutes Run Time' and battery level on the LED display.
Attaching and Removing Trimmer Heads
To change a trimmer head, ensure the device is off. Gently pull the current head upwards to detach it. Align the desired head with the main unit and push down until it clicks into place. Refer to the video below for a demonstration.
Video: A demonstration of how to assemble and change the body trimmer blade on the SUPRENT grooming kit.
Attaching Guide Combs
For trimming heads that use guide combs (e.g., T-blade trimmer, full size trimmer), select the desired comb size. Align the comb with the trimmer head and slide it on until it securely locks into place. Some heads feature an adjustable dial for precise length settings.

Image: A close-up view of the SUPRENT trimmer's adjustable blade, showing two stop settings for precise length control (0.5-1.0mm and 1.0-1.4mm).
Operating Instructions
General Trimming Tips
- Ensure your skin and hair are clean before trimming.
- For best results, trim against the direction of hair growth.
- Use slow, controlled movements for an even trim.
- The trimmer supports both wet and dry use.

Image: The SUPRENT trimmer being rinsed under running water, demonstrating its IPX7 waterproof capability for easy cleaning.
Using Different Trimmer Heads
- Full Size Trimmer: Ideal for general beard and facial hair trimming. Attach the appropriate guide comb for desired length.
- T-Blade Trimmer: Excellent for hair cutting, outlining, and creating sharp lines. Use with guards for varying lengths.
- Nose/Ear Trimmer: Designed for safely removing unwanted hair from the nose and ears.
- Precision Detailer: Use for intricate detailing, shaping, and fine-tuning edges around the beard, mustache, or hairline.
- Grooming Trimmer: Suitable for body hair removal.
Video: A user demonstrating the SUPRENT Hair Trimmer for men, showcasing its use for various grooming tasks including beard and hair trimming.
Maintenance
Cleaning the Trimmer
The trimmer is IPX7 waterproof, allowing for easy cleaning. After each use, remove the cutting head and rinse it under running water. Use the provided cleaning brush to remove any trapped hairs from the blades and the trimmer body. Ensure the trimmer is completely dry before reattaching the head or storing.
Oiling the Blades
To maintain optimal performance and blade longevity, apply a small drop of the included blade oil to the blades after every few uses, or as needed. Turn the trimmer on for a few seconds to distribute the oil evenly.
Troubleshooting
- Trimmer not turning on: Check if the battery is charged. If the travel lock is activated (indicated by a lock icon on the LED display), press and hold the power button for 3 seconds to deactivate it.
- Poor cutting performance or pulling hair: Ensure the blades are clean and free of debris. Apply blade oil if necessary. Check if the trimmer head is securely attached.
- Battery not charging: Verify that the charging cable is properly connected to both the trimmer and a power source. Ensure the power source is active.
Specifications
| Feature | Specification |
|---|---|
| Model Number | GK215BX |
| Battery Type | 1 Lithium Ion battery (included) |
| Charging Time | 90 minutes |
| Usage Time | Up to 1.5 hours on a single charge |
| Waterproof Rating | IPX7 (rinse-clean) |
| Product Dimensions | 6.8 x 8.7 x 2.4 inches |
| Weight | 1.32 Pounds |
Warranty and Support
The SUPRENT GK215BX grooming kit comes with a one-year warranty from the date of purchase. For any product inquiries, technical support, or warranty claims, please refer to the contact information provided in your product packaging or visit the official SUPRENT website.



