The Philips S5898/25 wet-dry shaver with SkinIQ technology. The Power Adapt sensor adjusts to your beard automatically for constant power and a smooth shave. The self-sharpening steel precision blades are designed to cut only hair, as they guide the skin away from the blades for a close shave, even on 3-day stubble. This shaver can be used wet, with foam or gel or it can be used dry. It comes with an integrated pop-up trimmer for maintaining your moustache and sideburns.