Which jews harp is best for a beginner?

ММ1017 Multi-Vargan

ММ1017 Multi-Vargan
Russian Vargans /
Oberton Pro Lab measurements:
Gaps: 40-70 µm (?)
Base frequency: 65-130 Hz (?)
Reed hardness: 100-120 gf (?)
Frame hardness: 700-1300 gf (?)
Reed size: 95x20-25 mm
Overall dimensions: 105x35x9 mm (?)
Weight: 60 g (100 g with case)
Jews harp with a set of 13 calibrated weights for shifting base frequency. The total, with unweighted state, is 14 notes of chromatic scale, including all half steps. Changing weights require inhuman accuracy and patience - this fun is not for everyday. Even getting proper one out of the box makes you sweat.