Meilan Smart Bike Tail Light X5 USB Rechargeable with Wireless Remote Turn signals Laser Beams for Moutain Bike,BMX Bike,Road Bicycle and Hybrid Bike 85 Lumens Safety Guardian: Wireless remote control and bright LED tail light are combined perfectly together to get drivers attention from blocks away, due to it's turn signal and various flashing modes. To allow drivers keep a safe distance from getting too close, laser mode is a big help, it protect you by providing a safety range with others. Bright: 29 LEDs 85lm(30lm is common used on other tail lights).It performs amazing no matter it's in a dark night or a foggy/rainy day, it is visible from 150ft away. Design: Angular outlook with red and orange brightlights makes you the outstanding star. Extreme long endurance: 2200mAh USB rechargeable battery,allows Meilan X5 works continuously up to 8 hours in flashing mode. The remote are installed with 2 high quality button batteries that can keep working for half a year without replacement. Tips:The Switch on the left of the light,Press it about 10 seconds to turn on the light;Use the USB cable comes with the light to charge, dont use other cables to charge, otherwise its easy to damage the device.