ROCKBROS Bicycle Tail Automatic Smart Brake Rear USB High Aluminum IPX6 Tail Bike 4 Lighting Battery Level Easy Installation for Road Cross and

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🔹 About Manuals If included, manuals are primarily in Japanese. We recommend using translation apps if needed. ----------------------------------------------------------------------------------- Smart Brake Warning & Automatic Lighting: The taillights feature 20 high-brightness lights for a wide light distribution. Equipped with a brake-sensing function, they illuminate at maximum brightness when they detect vibration or G-forces (gravitational acceleration) during braking, alerting those behind you. Automatic Flashing: The light also features a photosensitive sensor and vibration sensor, automatically turning on when approaching a tunnel or at dusk. The automatic light automatically turns off after approximately 30 seconds of stationary movement and then turns back on when vibration is detected, making it extremely convenient. [Four Lighting Modes & Brightness Adjustment] The rear light features four lighting modes, allowing you to choose the one that best suits your environment and situation. A short press of the center button cycles through the following lighting modes: flashing (approx. 30 hours), breathing flashing (approx. 30 hours), fast flashing (approx. 30 hours), and steady light (approx. 12 hours). Note: Auto mode may or may not be supported depending on the lighting mode. Supported lighting modes may vary depending on the batch. A nice feature is the three brightness settings: press and hold the center button to cycle through low, medium, and high brightness. [TYPE-C Rechargeable & Battery Level Indicator] Equipped with a built-in 300mAh rechargeable battery and a charging cable, the taillight is rechargeable and offers low running costs. It also features an indicator light, allowing you to visually check when it's time to charge. The light will glow blue when charging and will turn off when fully charged. When the battery is low, the blue light will flash rapidly to indicate that charging is required. [High-quality aluminum body & IPX6 waterproof] The bicycle light's aluminum alloy body protects it from drops and friction and provides excellent heat dissipation. The luxurious backlight complements the look of your bike and is a must-have for cyclists at night. Its IPX6 waterproof rating means it can withstand light rain or light exposure, so you can rest assured even if it suddenly rains while you're riding. (Do not immerse in water.) [Product Specifications & Manufacturer's Warranty] The safety light measures 64mm x 30mm x 34mm and weighs just 33g (including mount). This bicycle taillight can be mounted on road bikes, cross bikes, and other vehicles, and has two mounting locations (saddle rail or seat post). We offer a six-month warranty, so please feel free to contact us if you have any problems with the product.