Pure Wood Case: The digital alarm clock comes in a pure wood case and looks good. The perfect table clock for offices, living rooms and bedrooms. No disturbance: The travel alarm clock has 3 brightness levels with first-class light quality. You can choose the most comfortable brightness for your eyes. The digital alarm clock has a music control function. Each press and sound of more than 60dB nearby wakes up the LED alarm clock. The screen will turn off automatically after 30s, so you don't mind when you sleep at night. Power: The alarm clock is powered by USB charger (adapter is not included). The LED display is relatively energy intensive. In order to use the alarm clock stably, the use of the battery is not recommended. The product does not have a battery compartment. All 5V / 1A or higher adapters work with the digital alarm clock. Monitor temperature and humidity: Monitor temperature and humidity in children's room, bedroom or living room. So that you can adjust your thermostat