The black decker stc5433pc dualvolt powercommand string trimmer is part of the dualvolt range of products our most powerful range of cordless outdoor tools 54 volt provides enough power for even the toughest of gardening tasks fitted with a dual switch handle that prevents accidental starts part of the powercommand range easily feed the line at the push of a button with e drive transmission this patented design increases torque for more cutting power at the string variable speed control pro