This electronic alarm clock supports wireless charging of mobile phones. Simply place the wireless-charging compatible phone in the middle of the top of the clock and the photo will show effective charging. This only happens when the clock is powered by plugging the USB data cable into an adapter, such as a phone adapter, instead of the battery.You can use sound to control the clock by pressing the DOWN button to turn oN Sound control mode (oN: Sd). Then, the LED display will automatically turn off within 10 seconds, and make the sound sensitive to light, and then the display will not be lit all the time, which is very humane at night.This alarm allows you to set up to three alarms or remind you of different things. You can set 2 or 3 alarms in 5 or 10 minute increments to better wake you up in the morning, which can be used as an sn function. Simply press any key on the back of the clock to turn off the alarm. The 12H/24H format Settings are adjustable.Equipped with temperature display and date display, make your day clearer and welcome the new day.Dual power supply: mainly powered by a plugged USB cable (included), or 3 AAA batteries as backup power (not included, not recommended).