1. Two Display Mode: Press and hold the + key to switch the display mode.(1) Time+temperature is displayed on the same screen. (2) "Time+temperature" and "Date+temperature" are displayed cyclically 2. Two sets of Alarms: Support to set Alarm frequency :5/6/7; 5:Alarm rings from Monday to Friday; 6:Alarm rings from Monday to Saturday; 7:Alarm rings from Monday to Sunday. 3. 5 Levels of Brightness adjustment. Voice control function (available when only powered by battery). Snooze function: snooze 5 minute 4. Power saving mode. Time memory function(available when powered by battery and plug in use at the same time) 5.Night Mode: If night mode is on,Brightness darkens at night (22:00-6:00) Anti-disturb function at night In the non-setting state, you can press and hold the snooze button for 3 seconds to turn off the display to prevent the screen from interfering with sleep at night. After entering the screen-off mode, you can press any key to turn on the display, but control cannot turn on the display 12/24 hour format switch (1)Time Display (2)Long press the MODE button 24Hr Display (3)Press UP or DOWN can switch to 12Hr (4)Press the MODE button Time setting display (5)Hour digits flashing Voice control: clap your hands or knock on the table to wake up the alarm clock NOTE 1:Take the protective flim on Clock Screen,it be brighter. NOTE 2:It go off after 10 seconds when only powered by AAA Battery(Not Included) Clap your hands or knock on the table to wake up the alarm clock If you want screen always on,please plug in use. Material: ABS colour: green light Package Contents: 1 x alarm clock 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.