Reduce essential tremor without the risk of surgery or pharmaceutical side effects

With the Cala Trio therapy, patients experience meaningful temporary tremor relief after a 40-minute wrist-worn treatment enabling them to regain their daily activities independently and with confidence.1

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How it works

1Cala Trio measures your specific tremor.

2Gentle stimulation is sent to the median and radial nerves, traveling to the brain.

3The stimulation interrupt the tremor in the ventral intermediate nucleus of the thalamus part of the brain.


Cala Trio is a wrist worn wearable therapy. No surgery or invasive procedures needed.


Tremor reduction without systemic side effects.


Calibrated to target the source of your tremor.

Results that show

This image is an actual patient test (Archimedes Spiral Task) before and after a 40-minute stimulation therapy with Cala Trio.

Indications for Use

Cala Trio is indicated to aid in the transient relief of hand tremors in the treated hand following stimulation in adults with essential tremor. Please refer to the Safety Information for a complete listing of warnings and cautions.

Caution: Federal law restricts this device to sale by or on the order of a physician.

  1. Lin PT, Ross EK, Chidester P, et al. Noninvasive neuromodulation in essential tremor demonstrates relief in a sham-controlled pilot trial. Mov Disord. 2018;33(7):1182-1183. DOI:<br
  2. Isaacson SH, et al. Tremor and Other Hyperkinetic Movements. 2020;10:29. DOI:
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