This 165 ft. green-beam laser measure is a fully featured tool with an easy-to-read color display, great accuracy and reinforced housing for durability. The Bosch BLAZE GLM165-25G uses green-beam technology, which generates a point/dot up to 4X brighter than standard red beams. The laser has accuracy up to plus/minus 1/16 in., plus it includes a rounding button that rounds the measurement to the fraction that best suits the application and haptic feedback for loud jobsites. The digital laser measure also offers an IP65 rating and it has an ergonomic design for better grip. It includes 11 different measuring functions, including real-time length, area, volume and indirect functions and addition/subtraction capability. The Bosch GLM-BAT 3.7-Volt Lithium-ion Battery delivers greater runtime than standard AA batteries for some Bosch BLAZE Laser Measures, allowing adaptability and ease of use. It provides about 60% more runtime than AA batteries at normal room temperature and the GLM-BAT is not as affected by cold temperatures as alkaline batteries. The battery features convenient USB charging. It can charge using various 5-Volt power supplies, such as power adapters, PCs, laptops or portable power banks, for maximum flexibility. and it charges fast, takes only 15-minutes to charge, for 30-minutes of laser operation.