Flashing Panda Bicycle/Jogging Safety Light and Reflector, 5 Red LED, 6-Function 5 Red LED Light Array; Uses 2x AAA Batteries Belt clip (wear as a pager while jogging) Bicycle clamp - The unit clips on and off easily. Elastic arm band - included 6 Function Operation: Solid On, Fast Flashing, Slow Flashing, Slow caution flash, Fast caution flash, 3-Step Center to Outside running