1. 16 PCS super bright LED bulbs, working life is more than 100,000 hours; 2. lighting covers 360 degree direction, visible for up to 1 miles away; 3. High endurance even rolled under a car; 4. Back with strong magnets, can be attached on iron surface; 5. Shatterproof, and water- resistance; IP67 6. there are 9 patterns for this flare: Rotate, Quad-flash, Single-blink, Alternate, SOS, Solid-on high, Solid-on low, 2 led illuminate, 4 led illuminate; 7. One button control all the function. 8.With high capacity Lithium-ion battery, provide up to 60 hour working time.