Improved 120-degree adjustable bar—This easy-to-use traffic light can be adjusted up to 120 degrees, offering the widest adjustment angle available. This light meets the needs of riders on uphill, downhill, and straight roads, enhancing safety and reducing the risk of accidents. 500 lumens with 3 brightness levels—This rear traffic light delivers 500 lumens, illuminating the road up to 20 meters ahead. The red backlight provides visibility and alerts approaching vehicles, helping drivers identify your presence and avoid collisions. Offers three lighting modes: high beam, low beam, and strobe. Adjust the mode based on road conditions for optimal performance. USB rechargeable—Features a built-in 2000mAh battery and charges via USB. Can be powered from wall chargers, power banks, or computers. After a full 3-hour charge, runtime reaches up to 4 hours on high, 8 hours on low, and 15 hours in flash mode. Versatile and comfortable design—Includes an additional black shoulder strap. Two straps can be used interchangeably with various sportswear. Highly elastic materials allow customizable fit and secure positioning. Lightweight and unobtrusive, it won’t interfere with your movement during exercise. Ideal for outdoor activities—The running armband is IPX6 waterproof, resistant to rain and sweat. Suitable for jogging, cycling, walking, camping, hiking, fishing, and other outdoor sports. A thoughtful gift for dads, husbands, and friends who enjoy active lifestyles.