Wooden alarm clock displays date, time (12/24), temperature (F & C) and humidity; 3 alarm settings easy to set and program. Suitable for home or office decoration Adjustable Brightness: The electronic alarm clock has 3 brightness levels and premium lighting. You can choose a brightness that is most comfortable for your eyes Sound Control: The electronic clock has a sound control function. Any tap or sound above 60 dB near the clock will wake up the LED alarm clock. The screen will automatically turn off after 10 seconds, which does not disturb you while sleeping at night. If you want to keep the alarm screen on, just turn off the voice mode(Press "DOWN" then the screen displays. "ON:sd" means sound control is on, "-:sd" is sound control off.) Dual Power Supply: It can be powered by USB cable (NO adapter) or four AAA batteries (not included). When the alarm clock is battery operated, it will automatically turn off after a while to save battery power. It can be reactivated by sound or