The Caligo Opus features: - Complete Cartridge Concealment
- Easy to use LOW 2.4V, MED 2.7V, HIGH 3.4V settings
- Discreet Hidden Screen
- Auto Inhale or Button Functionality
- Haptic Feedback (w/ the option to disable)
- Aluminum Alloy Body
- 2x Contoured Magnetic Mouthpiece
- CART ERROR / LOW POWER alerts
- Charging Indicator Screen Mode
- Battery Life Indicator (700 mAh capacity)