[Trimmer Edger 2in1] Easily transforms from a precision string trimmer, into a powerful lawn edger. High quality ABS material, nonslip insulation. Continuous 13 Cutting Swath. 0.065 line diameter. [Intelligent Protection Battery] Upgraded lithium batteries. Humlest grass trimmer uses automotive grade battery cells, with a large capacity of 2500mAh, can provide strong power and longlasting endurance for your daily work. Add 9 kinds of intelligent protection to prevent burning and explosion. [HighEfficiency Pure Copper Motor] Humlest weed trimmer has a powerful engineering grade 20volt pure copper motor with a speed of up to 10,000 RPM,increasing weeding efficiency by 50 and a longer service life. [Automatic Fresh Line] Humlest weed wacker has the autofeed machine to ensure continuous work. The line cut will also keep the rope at the right length.The head can be tilted 90 degrees to reach hardtoreach places.Extra high quality elastic protective cover to protect your legs from injury. [Lifetime AfterSales Service] Humlest lifetime aftersales service everyone who owns a cordless string trimmer can enjoy a threemonth return service and lifetime aftersales service, and you can contact us througah Amazon messages and emails for questions about weed trimmer.