Four ultrasound speakers resonate the air within your ears to create sound that only you can hear. After connecting to your mobile device, you can now listen to music, take calls, hear podcasts, or listen to voice guided GPS directions. The personal sound environment enables users to be more alert of their surroundings, as it does not impair hearing of sounds outside the ultrasound zone. 

The system features a solar panel to gather energy as you enjoy a trip outdoors. This charges your mobile device and affords infinite power on longer journeys. Controls are ambidextrous and tucked into locations where they will not interfere with activity. A tensioner system allows for the perfect tuning of the sound environment, varying the distance between the speakers.