The GoPro Dual HERO4 Black Timecode Kit from B&H features everything you need for a timecode sync workflow. It includes two HERO4 Black action cameras, which capture up to Ultra 4K video at 30 fps, two SyncBac PRO Timecode Systems, and the :pulse Timecode Control Center.
The SyncBac PRO lets you embed timecode into the metadata of your GoPro footage. You can connect one to each GoPro and wirelessly sync the timecode between them. The :pulse Control Center allows you to view, monitor, and control the entire setup from a mobile device or computer and achieve zero drift timecode and genlock sync. The SyncBac PRO also enables you to timecode-sync the GoPros with pro cameras and pro audio devices.