Generatore di impulsi a onde Schumann 20W alta potenza 7,83Hz ultra-bassa frequenza con custodia
This product is Schumann wave 7.83HZ very low frequency generator, features high accuracy and stability. Schumann Wave Generator Board size: 9 5 2.5 cm (L W H). Schumann Wave Generator + Acrylic Box Size: 10.2 6.22 3.8 cm (L W H).