The only eye mask powered by SmartSense Technology™ — our exclusive biometric sensor that customizes treatments to lower your heart rate to a more relaxed state. Slip them on to soothe headaches, relieve eye strain, and invite calmness into the body and mind. Whether you stare at a screen all day, suffer from headaches or anxiety, or struggle to fall asleep, SmartGoggles keep you moving throughout the day and help you rest at night. Without box, used only once.