【Stepless Speed Regulation】You can adjust your blower air speed from 130 MPH (High)-40 MPH (Low). Best fit for all kinds of garden jobs. Lower air speed means longer battery time and lower noisy. High air speed increases power to clear stubborn debris. 【Comfort to Use】ADJUSTABLE HANDLE design: You can adjust the angle of the handle for the max comfort use of this leaf blower. Low noise design allows for quiet operation. Ergonomic designed SOFT GRIP handle for better grip and less fatigue 【Durable & Safety】Confidence with Multiply Certifications (UL, ELT, CE, GS, EMC, CSA), these stringent certifications guarantee the tools is safe and durable to use. Besides, we offer 1 YEAR NEW REPLACEMENT GUARANTEE: for any quality issues, Ukoke guarantee 1 year new replacement 【Ukoke 20-volt MAX lithium-ion battery system】Up to 40 minutes run time on a single battery charge allows you to complter a variety of tasks. Easily swap with other Ukoke cordless lawn and power tools. 【Satisfaction Guarantee】Buy with confidence, as we offer 30-days refund/replacement and 12 months new replacement warranty.【Feel free to contact us】Our customer focus customer care team will response and fix your problem within 24 hours UKOKE U02TE Cordless Electric Power Grass Trimmer, 12-inch Edging and Trimming, Includes 20V 2.0A Lithium Ion Battery & Charger, Silver