Led bike lighting 1.Silicon case 2.Battery:2xCR2032 3.0V(included ... color:white,red,blue,green,colorfulPowered by CR2032 3V button cell battery (Installed) Package: A pair silicone ... ,constant,off(change mode by pressing the ON/OFF button). It can be mounted on bicycle handle, seatpost ... color:white,red,blue,green,colorfulPowered by CR2032 3V button lithium battery (Installed) Package: A pair silicone ...