Wahl Men's Bump-Free Rechargeable Foil Shaver, Black/Gray, 7339-300. Wahl Bump Free Shaver includes a pop-up trimmer, foil guard, beard brush and hypoallergenic titanium foil. Travel-friendly rechargeable electric shaver features flexible hypoallergenic titanium foil cutters, a no-slip rubber grip, travel lock, and a pop up trimmer. Durable electric shaver features a NIMH battery with up to a 60-minute run time from a single charge, without memory issues. Hypoallergenic titanium foils allow for a close, smooth, bump-free shave that won’t irritate your skin; our titanium foils allow for a more comfortable shave and can help reduce the pain from shaving. Featuring self-sharpening precision blades and quality construction.