Features can be used universally around the garden or sidewalk with comfortable soft grip on off switch for continuous operation blow pipe with practical scraping edge for loosening wet foliage easy to assemble 90 cm long sound power level lwa guaranteed 85 db a quiet technical specifications power 18 v 15 ah lithium ion charging time approx 3 5 h blowing speed max 200 km h continuous operation with battery charging approx 15 minutes