Enhanced Safety: Built-in high-precision sensor detects rear danger levels, providing a high-frequency warning for increased visibility and safety during outdoor and night riding. Wide Detection Angle: With up to a 54-degree detection angle, this bike tail light significantly enhances environmental awareness, ensuring double safety even in challenging outdoor conditions. Proactive Warning System: Enjoy intelligent and proactive warnings with accurate early alerts to objects approaching within 30 meters, offering advanced protection during your rides. Versatile Warning Modes: Choose from three warning modes for customizable alerts, allowing you to adapt to different riding scenarios and preferences effortlessly. Ideal for Outdoor Adventures: Whether you're cycling outdoors or embarking on night rides, this ABS bike tail light is your reliable companion for enhanced safety and visibility on the road. Description: Illuminate your paths with the bike tail light, featuring a built-in high-precision sensor that automatically detects rear danger levels. With a wide 54-degree detection angle, this light enhances your environmental awareness and doubles safety, even in harsh conditions. Stay ahead with intelligent and proactive warnings for objects approaching within 30 meters, providing accurate early alerts. Choose from three warning modes for a personalized experience during outdoor and night riding adventures. Prioritize safety and visibility with this essential accessory for your biking journey. Item Name: Bike Tail Light Material: ABS, Electronic Components Battery: Built-in 1500mAh Rechargeable Battery(Included) Waterproof Grade: IP64 Features: Intelligent Warning, Alerts Modes Adjustable, Lightweight Size Details: L: 5.9cm/2.32", W: 3.95cm/1.56", H: 2.85cm/1.12" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bike Tail Light