Lighting Modes: This outdoor running light clip offers a maximum brightness of 150 lumens and features four different lighting modes: high, medium (50%), low (30%), and flashing red, suitable for various situations. You can easily switch between modes with a single button. USB Charging: The light does not require battery replacement; remove the clip cover to reveal a USB connector chip compatible with most USB interfaces; a red indicator light shows that the light is charging when inserted; a green indicator light illuminates when the light is fully charged; pay attention to the insertion direction. Ensure the plug is properly aligned for optimal product operation. Safe Design: This reflective, USB-rechargeable running light provides ample brightness to illuminate you and the surrounding road during your nighttime runs, making you visible to others from hundreds of meters away, thus reducing the risk of accidents and facilitating nighttime training. Versatile Use: This USB rechargeable reflective running light can be attached to hats, belts, chains, pockets, backpacks, dog collars, etc., eliminating the need to hold the light and reducing fatigue while running, jogging, hiking, camping, and other outdoor activities. Easy to use. Reliable and Lightweight: You will receive an outdoor night walking kit made of high-quality ABS plastic, measuring approximately 7 x 4 x 2 cm. This set is lightweight and portable, with a battery life of approximately 3 to 4 hours of continuous use on a full charge, and is suitable for most weather conditions and seasons.