Lap Timer Motorcycle Car Auto Racing Sport Aluminum Alloy (Blue) A great lap timer at a fraction of the cost of other on the market. Designed to be reliable and durable including shock proof. Efficient design means you can run multiple track days with a pair of batteries. Great for track days or sporting events! Easy to use - 30 second setup time. Up to 50 Hours Battery life for the timer and 5 hours for the beacon. Up to 15M signal distance (48 Feet) Aluminum Alloy Anodized body (Not Cheap Plastic) Uses 2x AA Batteries(not included) Highly reliable infrared lap timer. High accuracy at 0.01 - 0.03 Maximum