1. PMMA lens, increase light transmittance and light input
2. 2.4-inch high-definition color screen, collimating focusing lens, dual photosensitive holes
3. Electronic universal horizontal bubble, 360-degree accurate positioning
4. Photography + dual power supply: small optical system, electronic angle sensor, electronic universal horizontal bubble, camera assisted aiming, live voice broadcast
5. Photography + dual power supply + Bluetooth: large optical system, electronic angle sensor, electronic universal horizontal bubble, camera assisted aiming, real voice broadcast, Bluetooth mobile APP
6. Camera + video + bluetooth + drawing: large optical system, electronic angle sensor, electronic universal horizontal bubble, camera assisted aiming, Bluetooth mobile APP, dual processor, 4x digital zoom, photo/audio/video, music video playback , 16G storage space, trapezoidal measurement
7. Scope of application: distance measurement / area volume measurement / Pythagorean measurement / Bluetooth drawing
8. Battery capacity: photography + dual power supply / photography + dual power supply + Bluetooth: 2400mah; camera + video + Bluetooth + drawing: 4800mah
9. Power mode: USB charging / built-in lithium battery
10. Measurement mode: Length/Area/Volume/Pythagorean/Angle Height/Wall Speed ??Measurement
11. Measuring range: 80 meters, 120 meters, 200 meters
12. Charging voltage: DC 5v
13. Charging current: 1A
14. Charging power: 5w
15. Dimensions: photography + dual power supply / photography + dual power supply + Bluetooth: 12.5 x 5.4 x 2.7cm, camera + video + Bluetooth + drawing: 14 x 5.8 x 2.8mm
16. Weight: about 160g