ITEM NAME:Household LED electronic clock mirror clock home thermometer with USB Digit V1A7 Household LED electronic clock mirror clock home thermometer with USB Digit V1A7 USB dual-use battery, when using the battery, automatic power-saving mode, the light will automatically off, with the USB light is always on Time power-off memory function, reinstall the battery or reconnect the USB, the time does not need to be adjusted again Night sleep mode, automatically adjust the light Light under normal circumstances, there are three brightness options, through the key switch to select the brightness of light Digital Desk Alarm LED Electronic Clock Home Timer Bell Thermometer Temperature Calendar USB Clock Material: MDF + PVC Battery lasts for about 2-7 days. It is better to use a cable. The temperature always has a 1-3 degree difference in comparison with a professional thermometer. Time Display: 12H / 24H Touch button Buttons Definition---"SET", "UP", "DOWN". Display Modes: Time + Temperature Celsius/Fahrenheit Display of Thermometer(-10 Celsius-50 Celsius) Screen display type: LED. Power Supply: DC 5V-6V input or 7th battery (not included) Size: 195 x 45 x 75 mm (L x W x H) Power: USB cable or 7 batteries(not included) Packing: boxed Color: Blue light Material: glass + ABS Package included: 1 * Electronic Clock. 1 * USB Only the above package content, other products are not included. Note: Light shooting 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..USB dual-use battery, when using the battery, automatic power-saving mode, the light will automatically off, with the USB light is always on. Clock Material: MDF + PVC. 1 Electronic Clock. Power: USB cable or 7 batteries(not included).