Advanced Flexing Foil Technology gives you an ultra-close, ultra-clean look. Each of the dual foils flex independently making it incredibly comfortable. Its Surgical Steel blades deliver long lasting performance. The Remington F3790 is complete with cordless use, L.E.D. charging indicator, and a pop-up trimmer. It can be recharged for a run-time of 40 minutes. Refurbished item Cleaned and sterilized per the manufactures instructions.