Which jaw harp is best for a beginner?

AS563 Diatonic Maultrommel Set

AS563 Diatonic Maultrommel Set
German Maultrommels /
Oberton Pro Lab measurements:
Fundamental frequency: 65-140 Hz (?)
Overall dimensions: 190x160x0 mm (?)
Weight: 320 g (320 g with case)
Diatonic set of jews harps (C,D,E,F,G,A,C) with a pair holder, in a plastic box. Tunings suitable to get C-Dur (C+G), D-Dur (D+A), F-Dur (F+C), G-Dur (G+D), A-Dur (A+E) in a pair.