Xiaomi Smart Laser Measure BHR5596GL - Smart Laser Distance Meter. 1.23" LCD display for displaying measurement results, ±3mm measurement accuracy, minimum display unit: 0.001m, can be paired with Mi Home app via built-in Bluetooth, measurements from 5cm to 40m, 370mAh battery - up to 3000 measurements on a single charge, USB-C connector for charging.