8-bit digital tube network clock. Automatically switch time, date and temperature display. Automatic WIFI time adjustment, automatically calibrate the time every hour after successful network setup, time error does not exceed 1 second (supports 2.4G WIFI networks only, 5G WIFI 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 5V power supply via USB cable, compatible with mobile phone chargers, computer USB ports, TV USB ports, power banks, etc. If display is abnormal or unstable, power supply may be insufficient; replace with a stable power source. Color: Transparent, Green, Black Material: PCB + electronic components + acrylic Size: 158x55x27mm (assembled dimensions) Package Contents: 1 x WiFi network clock kit with shell (shipped in bulk) Note: Light reflection and screen differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3cm.