This golf rangefinder has a compact and portable design, soft non-slip material, comfortable holding experience and ergonomic grip, allowing players to measure with just one hand. Integrated magnetic strip technology makes it easy to install on the golf cart bar. Accurately adjust distance based on uphill or downhill slopes to get "true distance". The indicator light turns on/off to indicate whether the ramp function is enabled. There's also a flag lock feature, which once you successfully lock onto a flag, emits a pulsing vibration to confirm you've locked on to the target. It has a faster-focusing system and a premium, ultra-clear and multilayered optical lens, giving the image greater clarity. 6x magnification makes measurement results visible. It uses a rechargeable CR2 lithium battery, which is economical, convenient, environmentally friendly and has a long battery life. You don't have to use up and buy new batteries every time they run out.