The powerSmart PS10 electrical chipper shredder come with a 120-Volt, 60Hz, 15 Amp motor with a speed of 4500 RPM. It is able to handle branches or a diameter of up to 1.625 in. at only 33 lb. it is easily mobile. The overall height is 37 in., it comes with a safety locking knob, to prevent the blades and machine from turning on or spinning when turned on. Included is an overload switch, which will shut the unit off if fed too much at one time, to prevent damage to the motor and internal mechanisms of the shredder. With all these features, you can't go wrong for those small, to small/medium jobs.