Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si 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 distribution, the time error does not exceed 1 second (Can only connect to WIFI networks in the 2.4G frequency band, 5G WIFI networks are not supported yet). Three sets of alarm clock settings. You can independently set whether the three sets of alarm clocks are turned on. Double-click the SET button to enter the alarm clock setting . The power supply voltage required by this clock is 5V, using the USB cable, plugged into the mobile phone charger, computer USB interface, TV USB Port, charging bank, etc., can supply power to it. If the display is abnormal or unstable, the power supply may be insufficient. Replace the power supply. Colour:Transparent & Green & Black Material:PCB+electronic components+acrylic Size:Dimensions after assembly:158x55x27mm Package Contents: 1 * wifi networking clock parts + shell(shipped in bulk) 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.