Fastest Time to Unlock and Set Up a Wall-Mounted Visual Presenter

China

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Beihu-Chenzhou-Hunan, SAR, China / November 8, 2026

Yanhao Deng of Chenzhou, Hunan, China, unlocked a classroom's wall-mounted visual presenter, a document camera kept in a locked wall cabinet, and had it set up in 2.51 seconds. In the clip Yanhao turns a key in the lock at the top of the cabinet, pulls the front panel down into its base tray and swings the camera arm up into place, while a smartwatch stopwatch held beside the cabinet times the run. RecordSetter checked the footage frame by frame: the run from Yanhao's first move to the last touch on the camera arm measures about 2.6 seconds, within a tenth of a second of the watch. Ready for class before the bell finishes ringing.

Tags: technology, camera, fastest, keys, lock, school

Rules

- Use a wall-mounted visual presenter (document camera) kept in a cabinet that locks with a key
- The cabinet must be closed and locked at the start, with the camera folded away inside and the key out of the lock
- Unlock the cabinet with its key, open the fold-down base tray and unfold the camera arm into its working position
- Timing is on a stopwatch shown on camera, started as the performer makes the first move and stopped when the camera is fully deployed; a helper may run the stopwatch
- Show the closed cabinet at the start and the fully deployed camera at the stop
- Must be one continuous, unedited video showing the presenter and the stopwatch
- Must follow form of current world record holder
- Must provide video evidence
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