Dual Checking Ways: Since the device operates silently, its frequency generator is specially equipped with a
Schumann wave detector (response range: 1-100 Hz) and a pair of wired headphones (frequency response: 1-15 kHz). You can verify the accuracy of the current frequency setting either by observing the movement of the dynamic sphere displayed on the screen or performing an audio check via the headphones. This dual verification brings you peace of mind and ensures the device functions properly at all times
Portable Size: Featuring a slim profile ( 6.50 x 4.37 x 1.14 inches) and USB Type-C connectivity, this portable sound frequency generator requires no setup-simply plug and play for use anywhere