Support multisubject PIXEM filming with this Wireless Tracking Watch for PIXEM Robot Cameraman from Move N See. When used as an additional watch with the PIXEM Robot Cameraman (not included), the last person to press their watch button will be tracked and filmed by the PIXEM robot. If using a smartphone or tablet with a PIXEM robot, the free PIXEM app will automatically decide which watch/subject to track and film. For added convenience, the watch only needs to be paired once with your PIXEM Robot Cameraman.