Panasonic Beard Trimmer ER-GB40-S — Cordless Rechargeable, 19-Length Precision Dial (Blue), Waterproof, 50-Min Runtime

Panasonic ER-GB40-S is a rechargeable, waterproof men's beard trimmer with 45° stainless-steel blades and a quick-adjust dial offering 19 length settings for precise grooming.

Lightweight and travel-ready, the ER-GB40-S combines a rubberized ergonomic grip, an AC charging stand, and a fully washable design so you can trim cordlessly at home, on the road, or in the shower. The trimmer’s blades are honed to a sharp angle and the dial gives fine control from 1 mm to 10 mm, making it suitable for everything from close stubble to short trimmed beards.

How precise are the length settings for shaping my beard?

The ER-GB40-S delivers highly repeatable results through a quick-adjust dial that clicks through 19 distinct settings. Each step gives a small, consistent change so you can sculpt edges and blend lengths without switching combs.

• 19 length positions covering 1 mm to 10 mm for fine tuning
• Dial mechanism on the handle for one-handed adjustments
• Consistent cut height for shaping, trimming, and detailing

Will this trimmer work wet and how do I clean it?

The body and trimming head are waterproof, letting you use the trimmer over the sink or in the shower and rinse it clean under running water. An easy-open drainage design and included cleaning brush make maintenance fast and hygienic.

• Fully washable head for quick rinsing after each use
• Easy-open water drain for deeper cleaning
• Cleaning brush included for stubborn hairs and dry upkeep

How long does the battery last and how do I charge it?

This model runs cordless on a rechargeable Ni‑MH battery that provides up to roughly 50 minutes of continuous trimming after a full charge. The high-efficiency AC charging stand stores the trimmer and shows a red indicator lamp while charging.

• Ni‑MH rechargeable battery for cordless convenience
• Approximately 50 minutes of cordless runtime per full charge
• AC 120V charging stand with clear charging indicator

Is this easy to hold and transport for travel?

The ER-GB40-S features a rubberized ergonomic grip that improves control during detailed work and helps prevent slips in wet conditions. Its compact profile plus the charging stand and brush tuck neatly into luggage or a toiletry kit.

• Rubberized grip for secure handling in wet or dry use
• Compact size that fits grooming kits and carry bags
• Includes cleaning brush and charging stand for travel-ready storage

Who is this for? If you want a dependable, no-fuss trimmer that balances travel convenience with precise control, the Panasonic ER-GB40-S is a practical choice. It suits men who maintain short-to-medium beard styles, need a waterproof tool for shower use, or prefer a dial-based length system instead of multiple clip-on combs. It’s also a solid option for frequent travelers because of the compact charging stand and straightforward upkeep.