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 alloy Ring Battery: Lithium battery 18mAh (built in) Charging Compartment Battery: Lithium battery 300mAh (built in) Charging Time: About 1h Working Time: 3-5 days Size: 6, US: 6.5-7, Circumference: 53-55mm / 2.1-2.2in . Package List: 1 x Smart Health Ring 1 x Battery Case 1 x User Manual