The BaByliss Pro Silver FX trimming and detailing set features the FX788S Metal Lithium Trimmer with stainless steel adjustable zero-gap T-blade and a high-torque Ferrari designed brushless motor. Sturdy all metal housing and a powerful lithium-ion battery. The FXFS1 battery operated single foil shaver has a powerful rotary motor. Cordless operation only with an estimated 5 hour runtime. 2 x "AA" batteries are included.