[BM-3640] Stylish, simple, technologically-sense desktop clock can be placed in the living room, kitchen, bedroom, study, or school or office. Large-size color LCD screen, super large digital display, view data at a glance. It also has a background light, so the numbers can be read clearly at night. Not only the time display, it also integrates the display of alarm clock, temperature and humidity display, weather forecast, perpetual calendar and other information. Digital display clock, battery-powered and USB-powered. The battery model requires the user to prepare the battery, and the USB model supports the background light always on. It has many functions and practicality. In addition, it is also a perfect gift for your relatives or friends. Name: Color digital display electronic clock Special functions: temperature display, humidity display, night light, week display, alarm, perpetual calendar, weather forecast Colour: Black Display: LED Applicable places: study room, office, bedroom, kitchen, living room, school Product size: 14.5*11*5cm Screen size: 10.7*5.8cm Packing size: 15.6*11.7*3.6cm Movement type: electronic Shell material: plastic Power supply mode: 3A battery/USB (the product does not contain a battery) Display type: number Weight: 198.3 grams Time display: time (12/24 hours switch), date (2002--2099), week display Temperature measurement range: 0C-50"C (32"F-122"F) Humidity range: 20%-99% prompt: 1. When using the data cable, the backlight is always on; When using the battery, the wake-up screen backlight will be on for about 8 seconds, and the automatic light will be turned off. 2. When the product is connected to the data line, the battery immediately stops supplying power. 3. The product has no memory function and needs to be re-adjusted after power failure. 4. The product automatically detects temperature and humidity, temperature and humidity once in about 60 seconds, based on the analysis of nearby temperature and humidity. (The data will have errors, just for reference)