Safe & Smooth Trimming: Always use the included guards for a comfortable trim and to protect your skin. Charge Fully Before Use: your first charge MUST be 16 hours. Since there's no indicator light, set a timer on your phone. Powerful battery delivers up to 60 minutes of run time. Keep Dry: Not waterproof. Do not submerge in water; clean blades as instructed. Easy Grip & Control: The power switch is designed for precise handling-use with dry hands for smooth operation. Gentle on Hair: Trim slowly and steadily to avoid pulling. Perfect for Everyday Grooming: Designed for personal use to keep your beard, mustache, and hair tidy with ease. 13 pieces for all of your grooming needs: Beard and stubble trimming and maintenance, precision trimmer allows exact placement for sharp lines, nose and ear trimmer taking care of unwanted hairs Self-sharpening steel blades remain sharp as day one for long lasting performance, no blade oil required. Easily clean blades and guards by detaching from handl