Visual specifications

The CAP Explorer checks files on upload. If a file does not meet the requirements, an error message appears, for example «File size exceeds the limit of 50 MB».

Two values are often mixed up: the length of the video is the duration of the file in seconds. The playout period is the span from the start date to the end date in which the visual plays.

	Loop-based campaigns	Contact-based campaigns
Formats	.png, .jpg, .jpeg, .mp4	.mp4 only
Resolution	1920 x 1080 px at most	1920 x 1080 px at most, Full HD recommended
File size	The upload is safeguarded at 50 MB per file, there is no official maximum size. Images 5 MB at most for good playout	The upload is safeguarded at 200 MB per file, there is no official maximum size
Frame rate (video)	25 FPS recommended, CAP Explorer does not check it	25 FPS recommended, CAP Explorer does not check it
Sound	always without sound	sound recommended. With every upload, a normalization service normalizes the sound to EBU R128. Without sound is possible but not recommended. You set the volume in the store on the visual, see Set the volume.
File name	only a-z, A-Z, 0-9, - or _	only a-z, A-Z, 0-9, - or _
Length of the video (seconds)	at most the maximum duration of your account, shown in the upload step, see Loop-based campaigns at a glance	no maximum duration in CAP Explorer
Number of visuals	at most the number under Maximum number of visuals in the upload step	any number per campaign
Playout period (start to end date)	run time of the campaign	start and end of the visual lie within the campaign

What works well in advertising

An independent study in the Journal of Marketing (2025) analyzed 237 campaigns on C.A.P. screens. Researchers from VU Amsterdam and Babson College did the analysis, Cyreen only provided the data. This gives these learnings for your visual:

Learning	What the study shows
Do not look like promotional advertising	Visuals with a promotional signal, for example a price or discount in the foreground, work less well. An actual price reduction does not change the effect.
Show new products	Products that are new to the range benefit most from the advertising.
Appeal to enjoyment	Products bought for enjoyment respond more strongly to the advertising than purely functional products.
Plan for the time of day	The advertising works best in the morning and least around midday.

The results apply on average across many campaigns, not to every single one.

Study on methodik.cyreen.de