Handheld OLED Rangefinder Telescope Golf Rangefinder 1. Measuring range: 3-100015002000m +-(1.0m+D x 0.2%) 2. Measuring unit: m(Meter), Y(Yard) 2. Response time: less than 0.5s (less than 120M 64ms, greater than 120M 460ms) 3. Speed ​​measurement accuracy: +-5kmh 4. Speed ​​measurement range: 0-300kmh 5. Telescope magnification: 6X 6. Field of view: 7.0 degrees 7. Objective lens aperture: 23.5mm 8. Eyepiece aperture: 15mm 9. Exit pupil diameter: about 4.0mm 10. Vision adjustment range: +-6 degrees diopter 11. Laser level: Class 1 12. Laser wavelength: 905nm 13. Battery: 3.7V750mAh Li-ion 14. Fully charged working times: 20,000 measurements 15. Protection level: IP54 16. Working temperature: -10 - 50 degrees Celsius 17. Function: height measurement, slope measurement 18. Charging specification: DC 5V 0.5A Type-C 19. Size: about 11.2 x 7 x 4cm 20. Weight: about 181g Features: 1. Small and portable 2. High precision, high speed, low power consumption 3. Class 1 pulse laser, harmless to eyes 4. Silent operation, automatic power off 5. Speed ​​measurement mode, can capture target speed in real time 6. Naked eye focusing, no need to wear glasses 7. Built-in 750mAh rechargeable lithium battery 8. Flagpole locking function, convenient for measuring slender targets 9. Golf trajectory compensation function, used to calculate the actual hitting distance 10. Height and level mode, used for engineering measurement 11. OLED self-luminous screen, no matter the environment is bright or dark, the screen is clearly visible 12. Built-in magnet, can be attached to the golf cart and metal surface for easy access Packing list: - Rangefinder x 1 - Lanyard x 1 - Manual x 1 - Storage bag x 1 - Lens cleaning cloth x 1