Which type of bicycle can use this whells light?
Not only Use for Mountain bike / road bike / folding bike,
but also jogging, walking, bicycles, car emergency, horse-riding, road emergency & camping, and so on
Is there a flashing function?
Yes, this is yes,5 LED lights beads,2 laser lights remind someone else of keeping distance, add safety
Is the battery durable? How long can you stay?
Working time: 9-36 hours depends on the batteries，Power: 2 x AAA batteries (Not included)
How many colors can I choose?
You can choose two colors for example Red and bule
Can you turn off the switch?
Yes, that must be
Package include: 1 x Bicycle Laser Beam Rear Tail Light Lamp, 1 x Bicycle Mount (without batteries )