ECHO DPB-7700T Backpack Blower (Tool only) The DPB-7700T is a powerful Backpack Blower with an advanced LCD Display and work light, ideal for pros. Features Its powerful brushless motor provides gas-like performance Has a variable-speed throttle with cruise control that offers operator convenience and power control Its rubber over-molded grip increases comfort and control Its MAXOUT™ technology ensures maximum power output for the life of the battery charge Its LED Grip Control Display provides quick, easy, and precise indication of all three batteries It's three battery ports allow you to engage one, two, or three batteries simultaneously for a longer run time and better performance Features a turbo button that boosts performance to 225 MPH, 950 CFM, and 36 N The turbo button's locking feature delivers user convenience and maximum performance Has a heavy-duty padded backrest with a chest strap for all-day comfort Uses an 8.0Ah battery