| Clue | Source | Date |
|---|---|---|
| Remote powerers, often | Wall Street Journal | 08 May 2017 |
| Needs for many digital cameras | New York Times | 02 Jul 2015 |
| Needs for many digital cameras | ||
| Remote pair, often | ||
| Remote pair, often | ||
| Remote drivers? | ||
| Remote drivers? | ||
| Some small batteries |