Timing mode: and hold the button for 2 seconds, release when the screen displays 2, the led indicator on the back of the clock blinks slowly, indicating that the time is being set, and the back indicator be turned off if the time is successfully set.If the timing fails, the led blink quickly, and you need to configure manually. Configure :When the rear indicator is blinking , turn on the phone Wi-Fi to connect to the passwordless Wi-Fi named WIFI_Clock or VFD_Clock. After connecting to this Wi-Fi, interface can be displayed normally. Enter the Wi-Fi name and Wi-Fi password and click "Save" in the lower left corner.If no web page pops up, open the browser and enter 192.168.4.1 manually to open it. The clock is controlled by pressing the key for different times. Specific instructions are as follows:1: Correct the time immediately. 2: Turn on the automatic time setting function every morning. 3: Disable the automatic time setting function every morning. 4: Adjust the brightness, brightness oil dark to light cycle. 5: Adjust the time to obtain the server without deliberate modification. 6: Restore factory Settings. Color: black Material: plasticandmetal Package Contents: 1 x Clock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.