Smart Bike Tail Light for Night Riding with Waterproof and USB Rechargeable

[A Synchronized Cycling Companion] This bicycle tail light, while in motion, automatically synchronizes with nearby companions equipped with the same rear bike light, maintaining identical blinking patterns, a feature that requires user-initiated double-tap activation. Regardless of your group size, as long as everyone is using this light, you can maintain the same blink frequency, letting everyone know you're a unified team, making it the epitome of cool.

[Adaptable Brightness & Brake Sensing] The taillight offers 3 brightness modes to adapt to different environments. When cycling brakes slow down, the tail light will remain on for 3 seconds to warn the vehicle behind, ensuring personal safety and providing a good cycling experience.

[Versatile Dynamic Modes & Easy Installation] Riders can choose from 4 dynamic light modes: (1) Normal Flash, (2) Breathing Flash, (3) Fast Flash, (4) Steady On, tailored for diverse riding conditions day and night. The taillight can be effortlessly installed with metal under-seat or rubber band seat post mounts, making it suitable for road, mountain, cruiser, and scooter bikes.

[Smart Auto On/Off & IPX6 Waterproof] The bike rear light features intelligent functionality, equipped with Motion and Light Sensors that automatically turn off the light after 30 seconds of inactivity. Once movement is detected or the bike is in motion, the light reignites (auto on/off applies to modes 1 and 2). For continuous daytime visibility, riders can opt for modes 3 or 4 to bypass the Light Sensor, while the Brake sensing feature remains active in all modes. The light is also IPX6 waterproof, ensuring reliable performance in various weather conditions.

[Extended Battery Life & Intuitive Power Display] The taillight is powered by a 400mAh Li-ion battery, providing extended runtime during your rides. The built-in power indicator features four blue breathing lights, each indicating 25% battery capacity, ensuring riders know when to recharge. ROCKBROS stands behind this product with a 12-month guarantee, a 30-day money-back guarantee, and 24/7 customer support, ensuring a riskless purchase experience.

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