ENGREPO Bike Computer, Wireless Bicycle Speedometer, Multi Function Waterproof Cycling Odometer with Large LCD Screen DisplayBlack) Large, easy to read LCD display- Promotes bicycle safety: read data at a quick glance, so your eyes will be more on the road and less on the display! Wireless and waterproof design-Extremely durable, no ugly wires, performs under the harshest of weather conditions. Nice, pleasant backlighting - green backlighting.- Very readable under low light conditions. Multi Function Speedometer.- Measures speed, distance, and riding timeessentials for the biking enthusiast! Suitable for all bicycle types - Road bicycles.- Mountain bicycles.- Folding bicycles- Standard bicycles. Screen two line display reading time is about 2.5 seconds-<span class="a-text-bold">SAFETY</span> Screen three line display reading time is about 5 seconds-<span class="a-text-bold">UNSAFE</span> Screen four line display reading time is about 10 seconds-<span class="a-text-bold">DANGER</span> <span class="a-text-bold">SPD</span> Current Speed <span class="a-text-bold">ODO</span> ODOMETER <span class="a-text-bold">DST</span> TRIP DISTANCE <span class="a-text-bold">MAX</span> MAXIMUM SPEED <span class="a-text-bold">AVS</span> AVERAGE SPEED <span class="a-text-bold">TM</span> TRIP TIME <span class="a-text-bold">CLK CLOCK</span> / (12H/24H) Scan &#034;+&#034; &#034;-&#034;COMPARATOR Setting Tire Circumference Freeze Frame Memory Resetting the trip odometer/ ODO Wireless Transmission