8-bit digital tube network clock. Automatically switch time, date, and temperature display. Automatic Wi-Fi time adjustment; automatically calibrates the time every hour after successful network connection, with time error not exceeding 1 second (connects only to 2.4 GHz Wi-Fi networks; 5 GHz networks are not supported). Three sets of alarm clock settings. Each alarm can be independently enabled or disabled. Double-click the SET button to enter alarm setting mode. Requires a 5V power supply via USB cable; compatible with mobile phone chargers, computer USB ports, TV USB ports, power banks, etc. If display issues occur, such as instability or abnormalities, insufficient power supply may be the causetry replacing the power source. Color: Transparent, Green, Black Material: PCB + electronic components + acrylic Size: 158 x 55 x 27 mm (assembled dimensions) Package Contents: 1 x Wi-Fi network clock kit with shell (shipped in bulk) Note: Light reflection and screen differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.