Vention Smart Bike Tail Light, Usb Rechargeable Ultra Bright (jour / Nuit Visible) Lumière De Vélo Arrière Auto On / Off, Ipx5 Imperméable à L’eau Led Lumière Arrière De Vélo Pour Tout R

DAY/NIGHT VISIBLE — 180-Degree ring light design equipped ultra bright wide LED beam provides visibility up to 50m, you will be easily visible in dark night or daytime.INTELLIGENT BRAKE SENSOR — A build-in integrated accelerometer ensures accurate brake detection. Brake light will automatically light up while a brake motion detected.WATERPROOF & USB FAST CHARGING — IPX5 Waterproof bike tail light against splashing water and working great in any weather conditions. With the built-in rechargeable battery can be continuously operating 15-48 hours after 2.5 hours charging time. The bike tail light is compatible to be recharged by computers, laptops, power banks, wall chargers and any other USB-enabled power supply.EASY INSTALLTION — Saddle mounting and Seat Post mounting fit on any road bikes. Saddle mounting bracket and adjustable silicone strap are included, allowing the tail light be quickly attached and detached on bicycle, seat post, helmet, etc.International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.