Unique Design Multiple Lighting Modes: A set of front rear bike lights, each bike light has six lighting modes, independently controlled by a switch. They can be used separately or combined as needed. Six Lighting Modes: The front bike light has six lighting settings. Each press changes the lighting mode, after cycling through the six modes, press again to turn it off. The taillight also has six modes: very bright, medium bright, dim, slow flashing, intermittent flashing, fast flashing. Each press changes the mode, a long press turns it off. It has a memory mode, reactivating the mode used before turning off. USB Charging: Each bike light is equipped with a built-in 350mAh battery, charging in about 2 hours. The front light has a battery life of 2 to 8 hours, the rear light 3 to 8 hours. They can be quickly recharged via a computer or any other device with a USB port, avoiding unnecessary battery replacement IPX6: The bike lights feature an aluminum alloy housing, which is shock-resistant heat-dissipating, suitable for use in various environments. The USB ports switches are equipped with silicone gaskets, ensuring optimal protection even in the rain Easy installation removal: The silicone straps are highly elastic, stretching from 95 mm to 160 mm. They allow tool-free installation removal, making it easy to mount the front rear lights on different types of bikes, including children's bikes