HIGH PRECISION - With laser precision technology, accuracy up to 1/16 inch, measuring distance reaches 164 feet; Switchable between M/In/Ft for free adjustment. LCD BACKLIGHT AND MUTE ADJUSTMENT - Large backlit display gives you better visibility in dark areas; Muting lets you turn the measurement beep on or off as desired, allowing you to use it in a library, classroom, or other quiet place. MULTIPLE MEASUREMENT FEATURES - Area, distance, length, volume, continuous measurement, Pythagorean method - three points; Addition and subtraction; Low battery indication; 20 groups of data memory; Manually delete data; Auto shut-off after 180 seconds without any operation to save power. DURABLE AND HANDY - IP54 waterproof level and dustproof function maximally protect laser distance; Portable size and hard rubber body ensure good grip; The wrist strap allows you to hold the player firmly and carry it easily. Package includes: 1 x Laser Range Finder, 2 x 1.5V AAA Batteries, 1 x Wrist Strap, 1 x Nylon Case, 1 x User Manual the user; 24 months warranty.