MULTI-FUNCTION: Updated version for 7 levels of brightness adjustable display. Sound control function with acoustic sensor, displays time, date, month, year, temperature (°F), humidity(%RH), and alarm clock functions with LED lights that glows through the marble pattern finish. There are 2 USB output ports on the back (5V, 1A) that allows charging for Android or Apple system smart phones at the same time. SOUND CONTROL: This product has a sound control function, allowing the clock to go into standby mode after idled for 10 seconds. To activate or deactivate this feature, please refer to the user manual included in the box.