INTERIOR LASER: The Johnson Digital Mouse Level is an innovative leveling laser from the interior range; suited to indoor work environments. Made for construction and industrial use; this level projects a laser beam as far as 30 ft. SMART DESIGN: This leveling laser has an adhering back that conveniently sticks to any surface to allow hands-free measuring; grading; leveling and other one-man jobs. It features integrated horizontal and vertical leveling vials for versatile use. SUPERSTICK TECHNOLOGY: With a SuperStick adhesive system; the wall laser level makes a reusable leveling tool. It sticks to any surface and can be easily removed without leaving behind any holes or marks. IDEAL APPLICATIONS: The digital mouse level is particularly useful to work singlehandedly. It is ideal for leveling tasks such as aligning pictures; tiling and flooring applications; cabinet and shelf installation; building requirements and more. PRODUCT SPECIFICATIONS: This Orange Manual Leveling Laser Mouse works on 2 "AA" alkaline batteries (included) and has a continuous battery life of 40 hours. It is equipped with a protective carrying pouch for safe storage and easy portability.