DW077KD features include:

• Fully automatic horizontal & vertical self leveling with out-of-level shutoff eliminates user error, ensures accuracy, and reduces set up time
• Multi-voltage adapter accepts all DEWALT batteries 9.6V - 18V
• Protected rotary head & weatherproof design deliver interior & exterior jobsite durability
• Bright, sharp, high power beam delivers maximum visibility, even over long distances
• Remote control operated scan mode creates a "laser chalkline" between two points for an extremely bright beam over long distances
• Wireless (IR) remote control operation so that one person can setup and aim the laser over long distances
• Digital laser detector detects rotary laser beam over long distances or in bright light conditions