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How It Works

How It Works

Using components already present in many mobile and IoT devices, our virtual sensors create a fully customizable 180° interaction zone.

The device’s speakers emit high frequency ultrasound waves.

The ultrasound waves bounce off the user’s hand, head, or body (depending on the use case) and reflect back to the device.

The reflected ultrasound waves are picked up by the device’s microphone and get interpreted by our virtual sensors.

Benefits of Ultrasound

Above Optical and Electromagnetic Technologies

Long Range

5-meter presence detection radius

Low Power

Can run below 1 mA

Wide Field of View

Does not need careful orientation


Only listens to high-frequency sound—no visuals captured!


Works in all lighting conditions