Adjustable beam angle & agrave; 90 degrees - Why customers don't like the old traffic light? The old light cannot shine on the ground in front of you. That's it. Our engineers have developed an adjustable vertical beam & agrave; 90 degrees to meet the demands of runners on slopes and slopes. Lighting distance: the light beam brightens the path in front of the runner. a lighting distance of 25 meters to detect any obstacles or dangers. It is much wider than the old style. Long Battery Life - Intensity; manual brightness settings of 2: 4 hours with 500 lm (High Light) and 10 hours with 125 lm (Low Light) to make sure you reach the brightness. with just one button. And the rechargeable USB light is waterproof for the outdoors, convenient, reliable and durable. Visibility; from any environment & ndash; This is one of the safety lights. most innovative and efficient on the market. Reflective elastic bands and two flashing red LEDs on the battery cover allow riders to be seen by the driver and prevent unnecessary accidents in the dark. And the small & laquo; hood & raquo; Prevents the front light beam from dazzling the runner. Comfortable & comfortable; wear - Each strap is 10.2cm longer than the old style, to fit & agrave; different body groups and achieve the most comfortable condition, even fat runners, it is zoomable and durable. The adjustable chest strap high elasticity allows you to adjust the length and tension & agrave; your body to keep the body around and avoid moving so that you feel comfortable during training.