Panasonic ER-GB40 Cordless Beard Trimmer
- 19 length settings, 1 to 10 mm
- 45 degree stainless steel blades
- Up to 50 minutes cordless, Ni MH battery
- 15 hours charging time
- Wet/dry, fully washable
- Charging stand and cleaning brush included
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A precise, washable beard trimmer with a wide length dial for anyone keeping a short to medium beard. Charging takes a long time and the warranty is short.
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ASIN: B008KEJ1LMModel: ER-GB40Category: Beard & Mustache Trimmers
Overview
Stainless steel blades honed to a sharp angle do the cutting in this Panasonic trimmer, while a quick-adjust dial sets the length. It works wet or dry, rinses clean under the tap, and charges on an included stand.
A wide, fine-step dial covers stubble through short beards, and wet use means trimming in the shower. Charging takes hours and the warranty is brief, which matters for daily use.
Who it's for
Men who trim often and like to rinse the trimmer clean will use the dial daily. Those with long beards need longer guards than this offers.
Pros and cons
- Fine dial steps
- Sharp angled stainless blades
- Wet or dry use
- Washable under running water
- Long charging time
- Not for long beards
Performance notes
Blade angle and sharpness decide how cleanly hair cuts without pulling. The dial moves the comb in small steps, so you can taper by switching lengths in one pass.
Specifications
| Brand | Panasonic |
|---|---|
| Model | ER-GB40 |
| Dimensions & fit | |
| Maximum Cutting Length | 0.4 inches |
| Item Weight | 0.3 pounds |
| Item Dimensions | 1.8 × 1.8 × 6.7 inches |
| Minimum Cutting Length | 0.04 inches |
| Power & efficiency | |
| Power Source | Battery |
| Construction & materials | |
| Blade Material | Stainless Steel |
| Material Type | Plastic |
| Color | Multicolor |
| Included components | |
| Unit Count | 1 |
| Number Of Packs | 1 |
| Included Components | NEW! WET/DRY BEARD/HAIR TRIMME |
| Warranty & support | |
| Manufacturer Warranty Description | FULL 30 DAY WARRANTY |
| Other details | |
| Connector Type | AC Adapter |
| Hair Type | All |
| Is Waterproof | Yes |
| Recommended Uses For Product | Mustache,Beard,Trimming,Sculpting,Grooming |
| Other Special Features Of The Product | 1 Comb Attachment, Beard & Stache |
| Target Audience | Men |
| Specific Uses For Product | ['Beard Trimming', 'Mustache Trimming', 'Hair Trimming', 'Sculpting', 'Cutting', 'Detailing', 'Grooming'] |
| Charging Time | 15 hours |
| Item Nype Name | Panasonic Body Hair Trimmer |
| Item Part Number | ER-GB40-S |
| Manufacturer Contact Information | For Technical Assistance: Call 1-800-338-0552 (In USA) Call 1-800-561-5505 (In Canada) |
Frequently asked questions
How big is the Panasonic beard trimmer?
It measures 1.8 x 1.8 x 6.7 inches and weighs 4.8 ounces, and it fits in a travel bag with its stand.
Can the Panasonic trimmer be used in the shower?
Yes. It is wet/dry and fully immersible.
Can it run plugged in?
The description says it can be used cordless or plugged into an AC outlet for longer use.