Precision 45 Skin-friendly Blades This trimmer uses durable, super-sharp 45-degree angle stainless-steel, hypoallergenic blades to cut quickly and cleanly for efficient beard and hair trimming. 40 Lock-in Length Settings - Variable lock-in length setting for extra precision Simply adjust the comb to select and lock in the length you want, with 40 length settings from 1 to 20mm, or you can use it without the comb for a close 0.5mm trim. Cordless Operation - Use the trimmer cordless anytime, anywhere for up to 30 minutes with rechargeable battery power. Ergonomic Grip - The Staunch SBT1011 beard and hair trimmer with ergonomic grip provides for total comfort and control. High-performance Motor - This Staunch SBT1011 trimmer is equipped with a motor which delivers 9,800 cuts per minute and maintains peak power up to the end of every battery charge.