Panasonic Beard Trimmer for Men — Cordless ER-SB40-K, 0.5–10mm, 19 Adjustable Settings, Washable

The Panasonic ER-SB40-K is a rechargeable cordless beard trimmer that delivers precise grooming with 19 adjustable length settings and ultra-sharp stainless-steel blades.

This compact, travel-ready trimmer combines a high-performance linear motor, ergonomic rubberized grip and a washable design for everyday facial hair maintenance. Built to handle dense or flat-lying whiskers, the tool offers both cordless runtime and corded operation, plus a comb attachment and travel-friendly universal voltage.

How does the ER-SB40-K achieve precise length control?

The trimmer uses a quick-adjust dial along with a snap-on comb attachment to offer 19 discrete length settings from 0.5 mm to 10 mm. That makes it easy to switch between close stubble and a longer sculpted look without changing tools.

• 19 adjustable settings via an indexed dial and comb attachment
• 0.5–10 mm range for fine gradations in facial hair length
• Quick-adjust mechanism for fast, repeatable results

What makes the cutting performance reliable for daily use?

Panasonic equips this model with a linear motor that sustains power and produces up to 9,800 cuts per minute for consistent trimming, even as the battery discharges. The hypoallergenic, ultra-sharp stainless-steel wide-tip blades are designed to lift and capture stubborn or flat-lying hairs for an even finish.

• Linear drive motor rated for 9,800 cuts per minute
• Wide-tip, hypoallergenic stainless-steel blades for better hair capture
• Improved cutting geometry to reduce tugging on coarse hair

Can I use the trimmer wet, and how do I clean it?

The ER-SB40-K is fully washable, so you can rinse blades and combs under running water to remove clippings quickly. Regular drying and occasional blade oiling keep performance consistent; replace the blade when it becomes dull for optimal results.

• 100% washable head — rinses clean under running water
• Includes cleaning brush and blade oil for maintenance
• Blade replacement recommended when cutting efficiency declines

What are the battery, power, and travel features?

This trimmer offers cordless operation for up to 60 minutes on a full charge and can be used plugged into any AC outlet for extended sessions. Universal voltage support makes it suitable for travel, and the kit includes an AC adapter/charger.

• Up to 60 minutes cordless runtime per charge
• Corded use supported for uninterrupted trimming
• AC 100–240 V universal voltage and included charger for international travel

Who this is for: The Panasonic ER-SB40-K is ideal for men who want a dependable, easy-to-clean trimmer that handles a variety of beard styles—from precise stubble to short sculpted looks. It suits frequent travelers, those who prefer a cordless tool with solid runtime, and anyone looking for a low-maintenance trimmer with professional-grade blades and ergonomic handling.