The FXONE GOLDFX Hair Trimmer is a professional, all metal, outlining hair trimmer with a replaceable battery. Experience an exposed T-blade with 360 degree views and high-torque, Italian-designed engine. This interchangeable battery trimmer has a lithium battery with a 2 hour runtime and knurled barbell grip for comfort. Use this professional lithium ion hair trimmer for crispy edge ups, hard lines and all other detail work.