ROCKBROS Bicycle Tail Light with Magnetic Smart Brake Rear Light 7 Lighting 36 Hours of Continuous IPX6 Easy for Road Cross Day and Night and School

[Magnetic Design for Easy Installation and Removal] This magnetic bicycle tail light is easy to install and remove. It can be easily removed using the magnetic force without the need for tools. It's also portable, so you can take the light with you when parking your bike, helping to prevent theft. This greatly improves safety. It weighs just 36g and attaches to the rear of your bike's seat post, reducing wind resistance. [Brake Warning & Photo- and Vibration-Sensing Automatic On/Off] This bicycle taillight features a smart brake warning function that automatically lights up at full brightness when it detects braking or deceleration, alerting those behind you. It automatically turns off in bright light (such as in strong sunlight) or after two minutes of stopping, and automatically turns on in dark places (such as in a tunnel) or when it detects vibration. (Double-click the button to switch between automatic and manual modes. The photo- and vibration-sensing functions are enabled in automatic mode.) [7 Lighting Modes & USB Charging] This bicycle taillight supports 7 lighting modes with a single button. These modes include single flashing (approx. 36 hours 47 minutes), double flashing (approx. 27 hours 27 minutes), fast flashing (approx. 13 hours 51 minutes), slow flashing (approx. 31 hours 14 minutes), breath flashing (approx. 12 hours 42 minutes), up and down flashing (approx. 13 hours 16 minutes), and steady red (approx. 8 hours 3 minutes). The built-in 400mAh battery can be recharged via USB-C, eliminating the need for batteries. The remaining battery indicator intuitively displays the remaining battery life. When the battery level is below 30%, the red light will flash slowly at 0.8Hz. When the battery level is below 10%, the red light will flash at 8Hz. [Excellent Visibility & IPX6 Waterproof] The translucent shell design provides a wide 270° range of visibility. It effectively improves nighttime visibility, not only for vehicles behind you but also for those beside you. The bicycle taillights feature IPX6 waterproof technology for reliable waterproofing, even in bad weather and on bumpy roads. Protects the taillights from water, which can cause malfunctions. Perfect for everyday use, such as commuting to work or school, as well as outdoor activities like hiking and cycling. Caution: Avoid use in heavy rain or underwater. [Easy Installation & After-Sales Service] Equipped with a silicone band, it can be installed without tools and is compatible with 22-32mm seat tubes. There is a one-year warranty, so if the product breaks within this period, please feel free to contact us. We always provide reliable and satisfactory after-sales service. Please rest assured. *Brand: ROCKBROS *Product Name: Bicycle Magnetic Tail Light *Material: Tail Light: PC + ABS, Base: Silicone + Plastic + Magnet *Weight: Approx. 36g *Capacity: 400mAh, Type-C Rechargeable *Size: Approx. 66*19*28mm *Features: Convenient magnetic design, brake warning, photo- and vibration-sensitive, 7 lighting modes, remaining battery indicator, excellent visibility, IPX6 waterproof, easy installation *Compatible with seat tubes with inner diameters of 22-32mm. *Japan Bicycle is committed to providing the highest level of customer service. If you have any complaints about this bicycle tail light, please feel free to contact us. We offer refunds and returns.