Which jaw harp is best for a beginner?

Jaw Harp Wangare "Era"

Jaw Harp Wangare "Era" ' . L('index_recommended_all') . '
Russian Vargans /
Oberton Pro Lab measurements:
Gaps: 30-70 µm (?)
Base frequency: 80-90 Hz (?)
Reed hardness: 120-130 gf (?)
Frame hardness: 150-300 gf (?)
Reed size: 68x20 mm
Overall dimensions: 140x25x4 mm (?)
Archived model (?)
The average height of the pair of Wangare jaw harps - Era and Yakh - instruments with moderately rigid reeds, slightly stratified timbre and good mechanics. They have a fast, colorful playing with the most active articulation and intense beats. The sound is loud, piercing and rich - we recommend fans of hard jaw harps.