Âm thoa - Biosonics Otto Tuner Âm thoa có trọng lượng (128)

The weighted head on this tuning fork creates a really satisfyingly deep vibration that you can feel through the handle. I’ve been using it for quick grounding sessions, and the 128 Hz frequency seems to last a long time before fading. Definitely a step up from the lighter unweighted forks I’ve trie

I was surprised by how steady the 128 Hz frequency feels in my hands—perfect for clearing out stuck energy before meditation. The weight distribution makes it easy to hold for extended sessions without my arm getting tired.

The weighted head gives each strike a deep, lingering resonance that I can feel through the handle, and the 128 frequency settles my mind within a minute or two. It’s become the anchor of my evening wind-down routine.