Bicycle Cycling Laser Tail Light 2 Laser & 5 LED Mountain Bike Safety warning Flashing Lamp Alarm Light Back Rear Led Come With Mount Holder The 5 LED & 2 red laser beam bicycle safety light creates a virtual lane around your bike, helping to protect and keep you safe from incidents during night-time cycling or in the dark. The laser bike light works for up to 36 hours and has a simple, tool-free application allowing you to be safe and secure on the roads in very little time. The product creates a highly-visible laser lane subconsciously avoided by other road users as well as having a bright flashing light drawing maximum attention to your presence and position. Use for jogging, walking, bicycles, car emergency, horse-riding, road emergency & camping, ect. Powered by: 2 AAA batteries (batteries included)