This Waterproof Bike Indicators with Tail Light & Horn has 32 bright SMD LED lights, that are bright enough to be seen from 46m away on foggy/rainy days or even in the dark.
When in use, the red lights will stay on, so you can be easily seen. When turning, use the remote control to indicate the direction you want to go. The light will flash left or right along with a noise from the high decibel speaker.
The turn signal tail light is USB rechargeable, and it can be used for about 18 hours after charging for 2 hours. The wireless remote control battery can easily be replaced as it is a simple CR2032 battery