MULTIPLE MEASUREMENT FEATURES: There are 6 laser measure modes, including single measurement, continuous measurement (with Min/Max function), area/ volume measurement and Pythagoras Measurement. Three measure reference points to choose from. TIPS: Pay attention to the measurement reference point while measuring RECHARGEABLE BATTERY: Digital laser measure equipped with Li-ion rechargeable battery and USB charging(comes with a USB cable), you don’t need to replace batteries frequently, more environmental. 3-5 hours long battery lasting. Device will automatically shutdown without operation 120s, more energy-saving. Class II laser product, output < 1mW WIDE APPLICATION: This Laser Distance Measure with measuring range ups to 265 feet, with large backlight screen and bubble levels to meet your regular measuring need, ideal for home, construction and industries. Accuracy: ±1/8 inch; Press the UNIT button to switch units among M/In/Ft freely EXTENSION FUNCTIONS: Up to 30 records can be saved and retrieved, manually delete data; The mute button to turn on/off the beep, suitable for use in library, classroom and other quiet places; Measurements can be added/subtracted, assures you an easy and quick measurement to improve working efficiency PORTABLE and DURABLE: With a portable size(4.7*1.9*1.0 in), you can put the laser tool in your pocket or tools bags. The tools is designed to be shockproof, dustproof and waterproof. TIPS: Not recommended for outdoor use, Weight: 0.4188782978 Pounds, Manufacturer: HANZGHOU GREATSTAR INDUSTRIAL CO.LTD