- What comes in the packaging?
- Does Hummm Sound help with tinnitus?
- Where and when can Hummm Sound be used?
- Is there any certification or test?
- Is it safe for children?
- How do I select the fit size for myself?
- I can hear myself talk when I wear Hummm Sound, is this normal?
- How many hours can I wear Hummm Sound per day?
- Is Hummm Sound latex free?
- What are Hummm Sound earplugs made of?
- Can I buy spare filters?
- Can I change the filter?
- Does it come with User manual?
- What is the lifespan of Hummm Sound earplug?
- What makes it different from other earplug product?
- What is the attenuation level of Hummm Sound filters?