The unit initially had issues, but the company gracefully replace it at not charge.It's a good sign that the company responded to me and helped me to be satisfied.Claims:ULTRA-LONG-LASTING BATTERY -- PATIOX Cordless weed eater with blades is equipped with two powerful 21V lithium ion batteries for extended running time. Each battery can be used continuously for 1.5h, effectively improving the use of other grass trimmers for less than a few dozen minutes. In addition, it is also equipped with a triple quick charger, charging within 1.2 hour can meet your larger work requirements.-- The battery life is pretty good, but lacks power, so while it does last longer than others, it's because it doesn't use much power to supply the unit. The biggest issue of this unit is its lack of power. I would say it would be great for elderly people.POWERFUL CORDLESS TRIMMER/TRIMMING MACHINE -- PATIOX cordless weed wacker for lawn uses a blade-type, and the ultra-sharp blades allows you not to worry about being entangled in grass and manually installing wires. The durable and powerful pure copper motor has superior performance running at 20000 RPM for fast enough yard trimming. Therefore, you can quickly mow the lawn weeds.-- I totally disagree with this 20,000 RPM. I'm not sure where they got this from. The motor is pretty weak. As for "you not to worry about being entangled in grass" again, this is incorrect. It does get tangled grass more often than not!EDGER MODE & ERGONOMIC -- Innovative light weight brush cutter trimmer with blade can Rotate the motor head for Edger mode, which can be hand held easily to edge trim. Make you trimming efficient. The lightweight and ergonomic design allows you to save more energy in the process of comfortable use. PATIOX weed whacker is suitable for men and women, young and old, allowing families to share household chores for you.-- It's definitely lightweight and does small brush cutting pretty good, mostly weeds. It's not very powerful, so be aware of this.3-TOOLS-IN-1 -- With three different blades for different cutting scenarios, you can do all the tree trimming, lawn mowing and edging IN your yard with a PATIOX electric weed eater battery powered. Have fun mowing your lawn, whether it's in the garden, grass or bushes! Metal front guard rings provide space protection to keep the cordless edger away from hard objects, so you don't damage plants, landscape features and lawn trim as you trim.-- Definitely like the concept of the 3 tools in one, but there's a sacrifice.MULTIPLE SAFETY CONTROLS -- PATIOX Electric cordless weed whacker battery powered features dual switches that are held down simultaneously for dual safety control to prevent accidental activation offurniture and a splash proof grass cover to prevent debris from flying and soiling clothes.-- Agree on this part.LENGTH & ANGLE ADJUSTABLE DESIGN -- PATIOX electric weed wacker cordless with battery and charger has a 7-inch cutting diameter and a full 90° rotating head, so you can trim in tight, awkward Spaces, or edge trim in uneven terrain. With a 36 '-48' adjustable handle and a 180 degree Angle weeder, you can adjust the shaft according to your preference and comfort.-- This is probably one of the best features of this unit. It goes have a great functionality of adjusting and rotating. Great aspect here.EXCELLENT AFTER-SALES EXPERIENCE -- Our service begins with your order. We'll do everything we can to reduce your trouble. If there is any non-artificial damage to the product, there is no need to return the product, just contact customer service to enjoy a refund, no need to return the product. Order your electric cordless stringless weed wacker today.-- I cannot say one way or the other as I've not contacted the after sales department. I hope they come out with a more powerful unit, perhaps 40V version.