120V 1-1/8" Hex Brute Breaker Hammer 5010-12 And the last button is

And the last button is for audio on/off button

and hundredths of a foot

Featuring an automatic shut off timer

level and a 45°-degree vial

It comes with an audible indicator or continuous tone that indicates 0 and 90 degrees

120V 1-1/8" Hex Brute Breaker Hammer 5010-12 And the last button isThe New Brute is the hardest hitting hammer in its class! Features: Active Vibration Control: Vibration reduction in the hammer mechanism and the grip area provides maximum user comfort for extended periods of work; 50% LESS vibration than the 11304 Ergonomic Handles New ergonomic shock absorbing handles provide additional user comfort in all day applications Non Slip Housing Cover Rubberized housing cover helps prevent tool from accidental fall over