Powerful cordless trimming for your beard and hair. The REMINGTON® Cordless Power Series Haircut & Beard Trimmer 4000 delivers on convenience and performance. The rechargeable battery provides up to 40 minutes of cordless runtime, plus you can trim while it’s plugged in so you’re never caught without a charge. The ProPower Motor cuts 2x faster*, with stainless steel blades that stay sharp for long lasting durability. Customize your look with two adjustable combs, offering 16 length settings (1-44mm). To choose a length, just slide the comb into place and the auto lock keeps it there for dependable grooming performance.