Features: HIGH PRECISION: This Rangefinder is capable of measuring a long range up to 600-meter or 900-meter with an accuracy of +/- 1 yard, and the speed of a fast moving object up to 300km/h. Built-in flagpole locking allows golfers to identify their flag sticks easily. CRISP CLEAR IMAGES: 6X magnification brings the distant targets 6 times closer, brighter on the ultra clear, multilayered optics, which guarantees superior resolution and stunning bright images without color difference. MULTIFUNCTIONAL: Distance, Speed, Fog, Flagpole Locking - great measurement device with various working modes, giving you amazing experience in Golfing, Hunting, Surveying, Sporting Events and Outdoor Adventures. PORTABLE AND DURABLE: Measures just 4.1" x 3.2" x 1.6" and weighs only 6oz, convenient to fit in your pocket wherever you go. The durable, water resistant housing enables it to withstand most outdoor conditions (-10 ~ 40). ERGONOMIC DESIGN: Simple two button operation allows for fast switch between measurement unit meters/yards; Nonslip armor for comfortable grip; Full package includes carrying pouch, hand strap, lens cleaning cloth, user manual. Specifications: Measurement Range: 600m / 900m (optional) Objective Lens: 25mm Eyepiece: 16mm Exit Pupil: 3.8mm Speed Range: 0 - 300km/h Distance Accuracy: 1m Speed Accuracy: 5km/h Battery: 2 * AAA battery (Not included) Operating Temperature: -10 ~ 40