1. Length| Angle| Angular height|Area | Virtual ruler Designed with 5 pre-installed measuring modes to unlock with the side button 2. Single-button design for a facile and interactive experience 3. Measurements can range from 0.05m to 50m. It uses a harmless Material: plastic + metal Color as shown double laser-with a 0.2s instantly response to achieve higher efficiency Connect to the for App through Blue tooth and control through a mobile device 850mAh ultra-high capacity lithium batteries, 1.8-inch display data display more clearly Package Contents: 1 x Rangefinder 1 x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.