Feature:1. Intelligent Emotion Monitoring: Utilizing smart algorithms, this ring accurately detects and analyzes emotional states, providing scientific guidance for emotion management.2. Depression Monitoring: Electric smart ring automatically detects the risk of depression, providing early warning and intervention to care for your mental health.3. Sleep Detection: The intelligent fitness smart ring identifies and records sleep quality, which is helping you understand your sleep patterns and improve sleep.4. Multi Functional Design: Not just a smart ring, it can also connect to your phone via Bluetooth, providing message notifications, health data synchronization, and more.5. Health Companion: The bluetooth smart ring offers scientific health advice and monitors health indicators, supporting you throughout your journey to a healthier lifestyle.Specification:Item Type: Smart Ring Material: Titanium alloyRing Battery: Lithium battery 18mAh (built in)Charging Compartment Battery: Lithium battery 300mAh (built in)Charging Time: About 1hWorking Time: 3-5 daysSize: 6, US: 6.5-7, Circumference: 53-55mm / 2.1-2.2in.Package List:1 x Smart Health Ring1 x Battery Case1 x User Manual