St-504 Noise Level Specs
This page explains a product feature or technical term. A specification describes the device, not a guaranteed result.
Scope
The ST-504 is for healthy adults over 21. It is designed for temporary relief of minor muscle aches and pains on the legs and feet.
Practical guidance
Use the current instruction for use. Check the controller, sleeve, cable, and operating environment before a session.
Limits
Technical language does not expand the product indication. Ask support or a clinician when the question concerns safety or a diagnosis.
Related guidance
ST-504 complete guide. Safety and contraindications.
Evidence and limits
These sources provide context. They do not expand the ST-504 indication.