Product Name: Imitation Nixie Tube Clock Brand: GUAZI STORE Material: aluminum alloy, glass, ABS Size: 7.08*1.96*3.18 inches Weight: 0.77 lbs Voltage: 5V/1A Power: 2W Interface: TYPE-C Uses: Home, Office, Gifts Q: Do I need to assemble it myself? A: No, the clocks are all assembled and ready to use when plugged in Q: Does the clock get hot? Is there radiation? A: No, the clock does not generate heat and radiation. Q: How does the clock adjust the time and control the color? A: The clock can automatically adjust the time through WIFI. The WIFI must be 2.4G and does not support connecting to 5G WIFI. The clock controls the color through the APP, which is more simple and convenientQ: How does the clock connect to the APP? A: We realize that the introduction of the instruction manual is incomplete, so we have uploaded the connection video for faster connection of the clock and setting the clock below the product picture.