The BR 500 professional backpack blower is a low-noise unit, thanks to its sound dampening material making it ideal for use in noise sensitive areas producing only 65 dB(A). Powered by the fuel-efficient STIHL 4-MIX™ engine and a simplified starting procedure for single-handed operation, and an ergonomic mount for operator comfort, this unit sets new standards in the industry for a powerful yet ‘low-noise’ backpack blower.