Features: 1Dual alarm AL1 and AL2 settings. 2 You can view the current temperature. 3 12/24 hours can be set at any time. 4 It is voice control mode under battery power supply (usually light mode under USB-DC power supply). 5 1.2 inch LED digital display (it is more convenient and clear to see the time at night). 1.2 inch red LED display (display color is optional). Dual alarm wake-up buzzer. Snooze function. Temperature display. When powered by a battery, the voice control device will wake up. 12H and 24H format switch. Ideal for travel or bedroom. Wake up to beep beep beep. Snooze function (noise again after 9 minutes). Power-off can keep time and alarm setting (when equipped with 4 AAA batteries). Dual power supply working mode: 4 AAA batteries or external 5V power supply (no power supply, only with cable) (battery can be used for business trips, and power can be plugged in at home). Built-in buzzer. Key function: AL1: Set the time of alarm 1. AL2: Set the time of alarm 1. TIME: Set the current system time. SNOOZE: When the alarm sounds, press to enter the snooze function (the alarm will continue after 9 minutes). Hour: Set the number of hours. Min: Set the number of minutes. BEEP OFF: Stop the current alarm state. ALARM SWITCH: Turn on/off the alarm clock function (it will not work after it is turned off). Package included:1*USB cable 1*Alarm clock