Features 1、Multifunctional: The laser rangefinder can easily measure the distance and at the same time measure the area. 2、LED Screen: The laser rangefinder adopts LED screen, which is more readable in dark environment and easy to use. 3、IP54 Dustproof and Waterproof: Made of high quality materials, IP54 dustproof and waterproof, wear resistant and durable. 4、Small and Portable: Small and portable, with a lanyard, it is easy to carry, easy to store, and simple to use. 5、USB Charging: This handheld electronic infrared laser rangefinder adopts USB charging mode and built in alkaline battery. Item Type: Laser Distance Meter Material: ABS Product Size: Length: Approx. 10cm / 3.9in, Width: Approx. 3.3cm / 1.3in Measurement Accuracy: ± 2mm Unit: m/in/ft Measuring Range (without Reflector): 0.05- to 40/60/80m Measurement Time: 0.1 to 3 Seconds Laser Levels: II Level Laser Type: 635nm＜1mw Dust and Waterproof: IP54 Battery: 2 x AAA 1.5v Alkaline Battery (delivered with Built in Battery) Battery Capacity: 200mah Package List 1 x Laser Distance Meter 1 x USB Data Cable 1 x Lanyard 1 x User Manual