Digital LED Temperature Humidity Weather LED Table Alarm Clock Product details: 【LCD Display】-- Colorful and eye-pleasing display for easy reading. 【Clock】-- Clock display, 12/24 hour switchable. 【Multi Function】-- With alarm, snooze function, weather, comfort, temperature trend indication, really practical. 【Set by Yourself】-- Show you, date, month and week, and you can set, date, month, year by yourself. details: 1. When using a data cable, the backlight is on. When using the battery, the wake-up screen backlight is on for about 8s and automatically turns off. When the product is connected to the data cable, the battery immediately stops supplying power. 2. The indoor temperature and humidity are sensed. The weather is also based on the indoor temperature and humidity analysis. The data may have errors and are for reference . 3. Temperature and humidity measurement range:(measurement will have errors)Temperature:0 ° C-60 ° C (14.2 ° F-140 ° F)Humidity:20% -99%Product automatically detects temperature and humidity once in about 60s Specifications: The product can be used with a battery or connected to a USB cable Material:ABS Color:Black Temperature Measuring Range:-10~61°C / 14.2-140°FHumidity Measuring Range:20%-99%RH Power Supply:2 * 1.5V AAA Batteries Item Size:15.4*11.8*3.7CM / 6 * 4.6 * 1.4in Item Weight:165g / 5.84oz Package includes:1 * Temperature & Humidity Clock & 1*usb charging cable