Feature: 1. BRUSHLESS MOTOR: This chainsaw is equipped with a 600W brushless motor, providing strong power, extending its lifespan by 300%, reducing energy consumption by 50%, and greatly improving the efficiency of tree pruning. 2. TELESCOPING ROD: This kit is equipped with an extension rod that can extend from 4.1 feet to 7.21 feet in height, meeting your needs for trimming high branches. You can install it on the chain saw according to the actual situation. 3. BLADE AND HANDLE: This pruner uses SK5 high carbon steel blade, which is incisive, durable, and not easy to rust. The cordless design and non slip rubber coating make it comfortable to grip, reducing fatigue on the hand, arm, and wrist. 4. SAFE SWITCH: When you turn on the power switch, you need to quickly pull the trigger twice, then the green light will light up, and press it again to start working. If the trigger is not pressed within 60 seconds, it will enter automatic sleep mode. 5. COMPATIBLE BATTERY: This cordless chainsaw is powered by a 21V lithium battery (not included), and suitable for BL1830B BL1840B BL1850B BL1860B BL1815 BL1820 BL1825 194309‑1 194205‑3 batteries. Specification: Item Type: Electric Chainsaw Kit Material: ABS, Aluminum, SK5 High Carbon Steel Battery: 1 x 21V Lithium Battery (Not Included) Compatible Battery: For BL1830B BL1840B BL1850B BL1860B BL1815 BL1820 BL1825 194309-1 194205-3. Package List: 1 x Pruning Shears 1 x Electric Chainsaw 1 x Extension Pole 2 x Gloves 1 x Socket Wrench 1 x Hex Wrench 1 x Grinding Stone 1 x Screwdriver 1 x Strap 1 x Screw 1 x Nut 1 x Baffle 1 x Spanner