RAVEMEN NT201 Bike Radar Tail Light, 80-Lumen Bright Wide-Angle Bicycle Rear Light with Visual & Audible Alert, Auto Brake Flash, ANT+ Compatible, Power Level Check for Night Urban City Riding

‌[Easy To Match] Fit bike computers supporting ANT+ for radar and can do the capabilities within the computers; Stay alert with intelligent radar that monitors rear vehicles up to 140 meters away (10-160km/h); Receive timely visual and auditory alerts through compatible cycling computers to maintain road awareness at all times; No complicated APP required [80 Lumen High Visibility] This rear bike light with radar shines up to 1.6km/ 1 mile visibility and a wider viewing angle to maximize your presence on the road; Suitable for both daytime and night cycling, even in low-visibility conditions [Long Lasting 6 Modes] Includes high, low, slow flashing, warning flashing, daytime warning, and pulse mode for city commuting, or open-road cycling; Up to 23 hours on slow flashing mode, and 16 hours on the brightest 80-lumen warning flashing mode [Dynamic Brake & Motion Sensor] Built-in sensor activates a bright brake light the moment you decelerate; Smart motion detection also enables automatic sleep and wake-up, making your ride smoother and safer [Adaptable & Weatherproof] Mounts securely to round and aero seat posts which are no more than 4.5 cm wide; Also fits saddle rail mounting; IPX6 waterproof rating delivers stable performance in rainy conditions (tighten the charging cover before cycling)