PP program to thItem Type: Smart Ring_x000D_Material: Stainless Steel, Electronic Components_x000D_Product Color: Black_x000D_Battery Type: Lithium Battery (Shipped With Built In Battery)_x000D_Battery Quantity: 18mAh_x000D_Duration: 3-5 Days_x000D_Charging Time: 45 Minutes_x000D_Protection Grade: IPX8_x000D__x000D_How to Use:_x000D_Turn on off_x000D_Power on: After the ring is fully charged, disconnect the power and the ring will automatically turn on/off: After the battery is depleted, the ring will automatically turn off_x000D_Bluetooth connectivity _x000D_After disconnecting the power, the ring will automatically turn on, Bluetooth will start broadcasting, the app will search for devices, and select connection instructions: Please open the Bluetooth and location permissions of the app_x000D_Blood oxygen concentration monitoring_x000D_Automatic testing: The ring automatically tests the blood oxygen concentration every 2 hours, saves the test data, and generates historical record charts; Real time testing: Click the "Test" button to actively test the real-time blood oxygen concentration value and save the latest real time testing data. Explanation: Keep sitting still, and during blood oxygen monitoring, the red light in the inner ring of the ring will continue to flash. Blood oxygen warning, if the detected value exceeds the upper or lower limit, the APP will vibrate the warning_x000D_The testing time can also be changed according to user requirements in the APP and the number of steps can be counted_x000D_Record the number of steps per hour in real-time, generate a step count chart, synchronize data in real time when connecting to the APP, and upload steps when not connected._x000D_Blood pressure test: The blood pressure test is an active test; Click on the {Test} blood pressure button to display the data_x000D_The sleep monitoring ring records the complete Sleep cycle in real time, scientifically Analysis of algorithms analyze the duration of waking, shallow sleep, deep sleep and other stages, and generate record charts_x000D_Ring APP upgrade_x000D__x000D_The APP automatically detects the version of the ring program. For a better user experience, please upgrade the ring program and Ae latest version 1Multiple Functions: The smart ring has multiple functions, which can monitor your temperature and blood oxygen at any time, so that you can observe your health at any time. 2Lightweight Design: The ultra light body of the smart ring has no sense of wearing. The wearing experience is so light that you may forget its existence. 3Detect Sleep Quality: This smart ring can detect your sleep time and sleep state during your sleep to tell you how your sleep quality is. 4Sports Ring: Smart health ring can also be a sports ring, because it can record your steps in a day, providing you great using experience. 5Stainless Steel Smart Ring: The smart ring is made of stainless steel and ceramic, which is durable, beautiful and elegant. 6Ideal Gift: This smat ring is a meaningful gift. It is suitable for any scene or holiday, such as birthday, anniversary, Thanksgiving, Christmas, Hanukkah or Valentine's Day. 1 xRing 1 x Charging Compartment 1 x Charging Cable