The annotation at the end of the clip says viola d'amore (en.wikipedia.org/wiki/Viola_d%27amore), but the size, body shape, sound hole shape, and number of strings are more like a Hardanger fiddle (en.wikipedia.org/wiki/Hardanger_fiddle) with no decorative inlay.
@@chickenmcnoodle Nia Perez plays a viola d'amore. Hardanger fiddle is much smaller, not the same range, different shape of the body and never (historically at least) 5 playing strings.
