See the difference Lithium makes with the REMINGTON R4000 Series Rotary Shaver. Dependable Lithium Power delivers up to 50 minutes of cordless runtime with every 4-hour charge. The pivoting rotary head adjusts to any angle and the twin track blades stay in close contact with skin to help prevent irritation and deliver a fast shaving experience. Plus, clean shaving is easy with the fully washable shaver and a special anti-microbial additive that helps inhibit the growth of bacteria.