Features: High precision: Highprecise light source, millimeter level, more slender lines. Remote intelligent control, easy to work. LCD display on the back of battery, lithium battery power and usage times are displayed. High-quality Material: Made from ABS, IP5 Dust-proof and IP4 Water Proof. Battery with 5800mAh high capacity, 48h super-long standby. With a locking pendulum to avert damage to internal components. Self-leveling. One-key switch diagonal mode. Audible Alarm.