Features High Measurement Accuracy: The outdoor sports rangefinder has the characteristics of high measurement accuracy, short ranging time, intuitive distance display, and low power consumption. Premium K9 Lens: The rangefinder has a K9 lens with a thin film coating that ensures less light reflection and better light transmission. Easy to Carry: The portable rangefinder should have a light weight and small size. It is very convenient to carry when going out for sports, and it has a portable bag cover. Reliable use: The outdoor rangefinder can measure height and level indirectly, and it is very reliable in various terrains and environments. Wide Range of uUses: The high-precision range finder is widely used in power equipment installation, highway, municipal engineering, forestry design, etc., and is also very suitable for outdoor sports observation. Specification: Item Type: Laser Range Finder Model: SW-M500 Material: ABS Battery: 3.7V, 750mAh Li ion lithium battery (built in battery).  Application: Suitable for outdoor activities and measurement such as golfs, hunting, electricity, forestry, etc. Measuring Range: Approx. 3 ~ 500m / 9.84 ~ 1640.42ft Unit: M, Y Measurement Response Time: <0.5s Telescope Magnification: 6X±5% Viewing Field: 7.0°±5% Objective Lens Aperture: Approx. 19mm / 0.75in Eyepiece Aperture: Approx. 15mm / 0.59in Exit Pupil Diameter: Approx. 3.7mm / 0.15in Visibility Adjustment Range: ±6° Diopter Package List: 1 x Laser Range Finder 1 x User Manual 1 x USB Cable 1 x Carrying Bag 1 x Lanyard Note: 1. Do not touch the lens surfaces with your fingers to avoid damaging the film on the lens surfaces. 2. Please gently wipe the lens with a lens cloth, do not use other objects to wipe. 3. When carrying, avoid collision or heavy pressure. Package List 1 x Laser Range Finder 1 x User Manual 1 x USB Cable 1 x Carrying Bag 1 x Lanyard