Dual Alarm and Snooze Function:Dual alarm with 5 alarm sounds. You can also choose the luminous alarm clock with radio or bell. The alarm sound starts soft and then increases extremely loud. 10 Minute Snooze Function. Setting weekend mode can let the alarm clock never ring during the weekend. Digital FM Radio and Sleep Timer: FM radio mode can choose from 87.5MHZ to 108MHZ. Comes with an antenna for better signal reception. Easy tuning into FM radio channel with adjustable volume from 0 to 16 levels. The scheduled sleep function allows you to fall asleep in 90-75-60-45-30-15 minutes. Two USB Port: Clock radio has two USB charging ports which can charge two electronic devices at the same time(When the clock is powered by battery, it cannot charge other devices and earphone the radio) (1 x 2.1A, 1 x 1.1A). Multifunctional and 12 setting or 24H: The LCD display shows the room temperature (C or F), alarm time, current time and date. 6 Levels Dimmer Setting LCD Screen 100 percent to 0 percent Fully Adjustable Screen Brightness for Comfortable Viewing. Power Modes: It is recommended to use the power adapter for power the clock. 2 AAA batteries (not included) cannot provide the alarm clock works during power failure, the battery has time memory function. Only alarm and time settings are saved when the battery is running.