XUMIUZIY Smart Ring - size8

Specification: Material: Metal Size: about 4*5*0.5cm/1.57*1.97*0.2in Product Name: NFC Multi-function Smart Ring Size: 6/7/8/9/10/11/12/13 inch Package List: 1 * Smart Ring 1 * Instruction Manual Instructions for use: 1. First, check if your smartphone has NFC function. It can usually be found in the system settings. If no relevant options are found, with the manufacturer post-sale support, or search on if the smartphone model has NFC function and confirm its NFC area. 2. If your smartphone has NFC function, turn on the NFC switch, search your app for the software which apply NFC, download and install them. 3. Start the NFC APP, perform actions according to the instructions. 4. Since NFC is a near field communication technology, sure to place the top side of the ring chip right close to the NFC area when reading any data to avoid the failure in reading and writing.