Rated voltage: 220 Rated input power: 550 (w) No-load speed: 20000 (rpm) Power cord length: 1.2 (m) Saw chain material: 65 manganese steel Transmission link thickness: 4mm Advantage one-Easy to operate:Our Unisex mini handheld chainsaw can be recharged.It can be used with one hand and not easy to fatigue for long-term use.This wood cutting chainsaw is small in size,comfortable to hold,The total length is only 12 inch, convenient access to all places. Very suitable for family and occasional work,even women can easily control it. Advantage two-Safer and Reliable:battery powered chainsaw is almost ready-to-use right out of the box,No lubrication and easy maintenance,It adds a protective baffle and safety lock to prevent wood splashing and battery chainsaw from starting accidentally,When the motor temperature is too high (friction produces heat),the motor will enter the protection phase and strike.It is recommended to work for 10-12 minutes and Rest for two minutes,low noise than gas or cord chain saw.