Spark is the most versatile camera remote on the market. With three different modes of control, Spark was built to adapt to whatever situation you are shooting in. Whether you're taking a fun group photo, capturing a long exposure of the stars, or settling down and setting up a time lapse, Spark gives you instant control. With your phone or without it. Spark Features : -Wirelessly control your camera's shutter from up to 100' away -Take sunset timelapses with Bbulb ramping -Free up WiFi and Internet as Spark uses and BLE -Extend your session with 2,000 hours of battery (factory replaceable)