NE3 Smart visual ear scoop: 1. Press and hold the earspoon power button for 2 seconds, and the blue light blinks, indicating waiting for connection 2. Scan the code to download the APP or use Google browser to search for SL ylz download 3. Enter the software and click to find WiFi 4. Select WIFI:HNDEC-XXXXX connection 5. Return to the APP. At this time, the constant state of the blue light indicates that the connection is successful and can be used normally