Key Features & Technical Specifications3-Head Rotary System: Features three independent, flexible floating rotary heads designed to glide smoothly and contour tightly around facial angles.Dual Precision Cutting: Leverages a 3D dynamic blade design with ultra-thin dual-track foils to capture hairs growing in multiple directions while protecting sensitive skin from friction.Self-Sharpening Blades: The stainless steel internal blades automatically sharpen against the outer foil during use, sustaining high cutting performance for up to 2 years.PowerTouch Battery Tech: Offers up to 80 minutes of continuous cordless use from a full 2-hour charge session.