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With its cutting-edge radar technology, the SEEMEE R300 is not just a rear light, but a true active safety system. It detects approaching vehicles up to 140 meters away, at speeds from 10 to 160 km/h. This proactive monitoring drastically reduces the risks of rear-end collisions, both from fast-moving vehicles and with e-bikes or occasional cyclists. When vehicles approach within 50 meters, the SEEMEE R300 immediately emits a warning light of 300 lumens, dimming and slowing as they get closer. This ensures high visibility while still being respectful of both pedestrians and motorists. The SEEMEE R300 integrates perfectly with major cycling computers like Garmin, Wahoo, and Hammerhead, providing instant traffic updates. Our pioneering PelotonSync Flash technology, designed for team adventures, intuitively synchronizes the flash between compatible devices nearby, enhancing group safety. The SEEMEE R300 is equipped with a powerful 3350 mAh battery, offering up to 100 hours of runtime. The eco-flash mode extends battery life without compromising the safety provided by the device.