A fully charged battery enables 45 minutes. Work, making it calmly enough for a full treatment. You do not have to worry about suddenly turning the trimmer off The trimmer has a variable supply voltage, so you can use it also outside of Poland (in the 100V-240V range). this is a very useful feature if you travel a lot Power: battery. Battery life: 45 minutes. Number of settings of the shearing length: 10 Range of cutting length: 0.5 - 10 mm. Cutting blades: stainless steel Cap for trimming hair in the nose and ears: no. Additional functions: the possibility of washing under water, blades that do not require oiling, precision trimmer