You can take this slim, compact 100-foot laser distance measurer to almost any job site, as it conveniently fits in your pocket. Effortless measuring is enabled by the device's 2-button operation, allowing the user to quickly switch between units of measurement (feet, inches, and meters). For good readability both indoors and outdoors, the backlit LCD screen remains consistently bright and is designed to make reading measurements easier in direct sunlight. With this versatile laser distance measurer, you can add, subtract, or calculate area and volume measurements while tackling a variety of construction planning and layout tasks. 2 AAA batteries are included. Versatile: Adds, subtracts, and performs area and volume calculations for measuring and layout applications. Simple 2-button control: Converts between imperial and metric systems to display measurements in feet, inches, and meters. Built for portability: Compact size for easy transport on the job site.