Product specification: 1 Battery Red 24V 2 Batteries Red 24V 1 Battery Black 24V 2 Batteries Black 24V 1 Battery Red 36V 2 Batteries Red 36V 1 Battery Black 36V 2 Batteries Black 36V [High power motor chainsaw]: Our mini chainsaw cordless featured with pure copper motor and 21V/2Ah battery, chain speed up to 5M/s, which allows it cut a log with a diameter of 4 inch about 5 seconds.The chain saw switch can adjust the speed according to the strength, and you can adjust the cutting speed you need according to the operating conditions. [High quality cordless chainsaw]: This mini chainsaw battery powered is equipped with deep-hardness quenched guide chain and sprocket nose tooth, which can ensure smooth and efficient cutting. [One-handed use chainsaw]: The handheld small mini chainsaw is light in weight and can be easily controlled with one hand. Its not tired to hold for a long time. The portable chainsaw also suitable for women. Small in size, easy to carry. [Safety ensured & Ergonomic Design]: Prevented sawdust splashing by using the chain baffle. One thumb switch for the trigger safety and one-finger trigger for operation. The integrated guide plate dissipates heat quickly and is very resistant to falling and abrasion. With non-slip handle design,the grip feels very comfortable. [Easy installation]: The electric chainsaw has been installed, you only need to adjust the screw tightness and fully charge the battery before you use it. Equipment maintenance only needs simple oiling and wiping.