Description: Material: Our Intelligent Ring is made of titanium steel material, which is durable, comfortable to wear, can be reused, and has a long service life.Multi purpose: The Intelligent Wearable Ring has multiple uses. It can be set up to open smart door locks, recharge 1 card, unlock smartphones, lock important files on mobile phones, transfer files with 1 click, and support .Multi function: This intelligent display ring realizes screen unlocking, application locking, quick launching of applications, sending and reading business cards, website information, and other functions by touching the mobile phone's signal area.Simple Design: The multi purpose smart ring has a simple design, appearance, and is easy to use.Ideal Gift: This smart ring device is suitable for giving on birthdays, anniversaries, Valentine's Day, Father's Day, and other occasions. It is an ideal choice for men and boys. Package Includes: 1 Intelligent Wearable Ring Note: Please allow slightly errors due to manual measurement and different monitors.