 "C2G RapidRun - coupling ring" " C2G ring 98015 Audio/Video Cables CDW.com
"Two coupling rings are provided with every PC (yellow) and Multimedia (blue) RapidRun runner cable for connecting break-away flying leads or wall plates. This 2-pack is available to replace those rings that are lost or misplaced.After installation, remove the pulling cap from the runner cable. Attach the coupling ring to the runner cable. Each end of the coupling ring has different threads. The knurled end will face away from the cable. Connect the break-away flying lead or wall plate to the runner cable via the coupling ring." 
 "GoPro LCD Touch BacPac - display module" " GoPro module ALCDB-401 Digital Camera Accessories CDWG.com
"The LCD Touch BacPac is a removable LCD touch screen that seamlessly attaches to the back of your GoPro. As a removable accessory, it keeps your camera as small and light as possible, yet provides the convenience of an LCD touch screen when attached. The LCD Touch BacPac makes it easy to frame your shots and play back content, and delivers convenient touch-screen control of all camera settings." 