Choice: a single pair of scissors: 16.8V and 21V Trim diameter: 2.8cm Lithium battery: 16.8v/21V Endurance: 6-8 hours Cutter head material: SK5 Body: rubber coated Motor: strong magnetic brushless [Sharp & Adjustable Cutting Diameter]--The electric pruning shears are equipped with sharp SK5 high carbon steel forged blades. It is extremely sharp and durable, making it easy to cut about 28mm hard branches. [Portable & Effort Saving]--The electric branch scissors body weight, shockproof and anti-slip, fits ergonomic design, you will not feel tired after longtime using. [Long working hours]--The Electric tree pruner equipped with 2 rechargeable 2AH lithium batteries, battery life is long, each battery just needs 1.5-2 hours to charge, and 2 batteries total can sustain to use 6-8 hours . [Widely Used]--This electric pruner has a wide range of uses, can be used to all kinds of gardens, parks, farms, large pastures, orchards, greenhouses, you can cut grapes, cherry trees, apple trees and so on.