Rechargeable Power Supply: The bedside alarm clock is powered by USB cable or built-in power bank. LED display with large and clear numbers, easy to read and use. There are two modes: "Always on display" mode and "Touch activated" mode. "Always on display" mode can always display the time, and other modes can save power. (Note: Please connect the USB port or only 5V/1A and 5V/2A adapter to charge the clock). NIGHT LIGHT FUNCTION: Press the "NAP" button on the back of the digital clock to make an eternal light disappear from your clock screen. The night light also has a timer function, you can set the timer duration (5 minutes to 120 minutes). Touch the top of the clock for 3 seconds to adjust the brightness of the night light. INDEPENDENT DUAL ALARM CLOCK WITH 4 MODES: You can set 2 different alarm clocks and choose between 12 and 24 hour clocks. There are 4 modes: 1-1 (1 day alarm), 1-5 (Monday to Friday), 1-6 (Monday to Saturday), 1-7 (every day). ADJUSTABLE BRIGHTNESS: You can