Features: Mini and unique design,fashionable and portable. ABS+Acrylic housing,lightweight and durable. Colorful TFT display with backlight, bringing you brighter and clearer reading. (Supporting better visibility) With built-in rechargeable Li-ion battery. IP65 higher level dust&splash-proof protection. Exclusive invention patent: single measurement: 0.3S, continuous measurement 7 times per second. Distance,Area,volume calculations. Indirect measurement using Pythagoras. Addition/subtraction. Continuous measurement. Minimum/maximum distance tracking. Specifications: Display: Multi-line display Dust Protect/Splash-proof: IP54 Auto Switch Off: After 0.5min Auto Instrument Switch Off: After 3min Battery Type: Li-ion Battery Life: 2000 measurements Size: 7.5*3.4cm/2.9*1.3in Weight: 117g(approx.) Package Includes: 1 x Rangefinder 1、Mini and unique design,fashionable and portable. 2、ABS+Acrylic housing,lightweight and durable. 3、Colorful TFT display with backlight, bringing you brighter and clearer reading. (Supporting better visibility) 4、With built-in rechargeable Li-ion battery. 5、IP65 higher level dust&splash-proof protection.