Should REVIAN headliner adjustments be added to the front or back of the cap?

Should REVIAN headliner adjustments be added to the front or back of the cap?

Any adjustment or headliner addition needs to be made to the back of the cap as described in the instructions that came with your device, as the cap's sensor is located in the front of the cap. The sensor must be touching your forehead/hairline in order to be triggered so that you can connect to the app via Bluetooth to begin treatment.

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