The mini laser telemeter is an easier, faster and more accurate way to measure area, volume, and it also has a Pythagoras function. With its laser precision technology and real time measurement mode, it provides reliable measurements up to 40 meters. The telemeter uses an energy-saving 200mAh li-ion battery as power supply, and can measure distance 2000 times after fully charged. It has a backlit display for easy viewing even in dark areas. Size: 9 x 2.4 x 1.1 cm. Packed in a recycled paper gift box (10.2 x 4.2 x 3 cm) with magnetic closure. Includes 3 year warranty.