Diyeeni R3 Smart Ring - Size20 (US 10, for Finger 69mm / 2.7in)

Specification: Item Type: Smart Ring Material: Stainless Steel, Electronic Components Ring Battery Type: Lithium Battery (built in) Ring Battery Capacity: 18mAh Ring Battery Life: Approximately 3-5 days Ring Charging Time: 60 minutes Size: Approx. 25 x 25 x 10mm / 0.98 x 0.98 x 0.39in How to Use: 1. After receiving the product, download the Smart Ring APP and complete the installation. 2. Once the download is complete, you can connect and use the ring. 3. The ring will automatically turn on when it is fully charged. Package List: 1 x Ring 1 x Charging Cable 1 x User Manual