Duo
Digital goniometer and laser feedback for neck movement assessment.
One measurement platform, two packages: a focused neck kit today and a broader kit in development that also includes neck assessment.
Current Duo kit
For clinicians focused on cervical movement. Record neck range of motion, joint position sense, and stability and control using the included head strap and the HeadX Duo app.
Planned black kit · price to confirm
For clinicians assessing neck, upper limbs, lower limbs and trunk. One planned black kit includes a wipe-clean head strap plus arm, leg and chest straps. Price and release timing are to be confirmed; not available to order.
Duo (Neck edition) includes the wipe-clean head strap. Duo (Multilimb Edition) is a planned separate product that also includes the head strap, plus arm, leg and chest straps; its availability and price will be confirmed before launch.
Experience with HeadX Duo and HeadX Kross in clinical practice.
Follow the crosshair, choose an exercise, then see how it fits together.

Follow the laser against the wall chart.
Get the chart
Work through 70 graded exercises.
Browse exercises
A 15-minute walkthrough of Kross or Duo.
Book a 15-minute demo