Key Features Gentle eye and temple massage with heat and vibration to help you relax and prepare for sleep Built-in biometric sensor for personalized treatments designed to promote relaxation and lower your heart rate 3 science-backed treatments you can customize to your comfort level: SmartRelax, Focus and Sleep Comfortable fit with weighted materials and adjustable straps Portable, foldable design for relaxation anywhere you go Bluetooth connected to the Therabody app for treatment customization and access to TheraMind sound therapy content 120 min battery life, depending on the mode FDA-registered