Remingtons F-3790 electric shaver features a new and improved dual foil cutting system with steel blades. The foil shaver is rechargeable with a 40 min usage time, a 16 hour charging time. This electric razor also features a pop-up trimmer to trim side-burn to but hard to cut hairs. Features: - Flexing Foils adjust to your face,chin & jawline. - Pop-Up Trimmer for precise detailing. - Surgical Steel Blades for long-lasting performance. - Rechargeable Cordless Razor. - Battery fully charges in 16 hours. - 40 Minute Runtimefor 12 Days of Shaving. - Charging indicator. - Made by Remington... » read more