Self-Sharpening Blades Wahls precision self-sharpening precision blades stay sharp longer and continuously sharpen over time; oil between every few haircuts to increase the longevity of your trimmer motor and blades Long Battery Life with Quick Recharge Equipped with 1-minute quick charge for 3 minutes of instant power & fast 1 hour charge time for up to 3 hours of run time; for USA electrical outlets only Powerful & Durable Motor - Quiet, low noise motor allows for easy, smooth trimming and shaving; 14-piece grooming kit features 11 beard combs from 1/16 to 1 for various cutting lengths 12 Cutting Lengths This kit features 11 individual guide combs, allowing for 12 cutting lengths from 1/16 to 1 The Brand Used by Professionals - Wahl clippers and trimmers have been used by professionals in the salon & barber industry since 1919; Featuring self-sharpening precision blades & quality construction Recommended Charge Cycle - To maximize the health & life of the un