Two power suppliesThis wooden alarm clock can be powered by 4 AAA batteries (not included), or USB / DC Power (included). Which can be used in different occasions: Office / home / hotel / car / outdoor. .. Multi-functional AlarmElectronic desk clock not only has multiple display modes, but also comes with three types of alarm, guaranteed to wake you up from even the deepest sleep. Rectangular Artificial Wood LED Digital Alarm ClockWood LED Alarm Clock is portable and easy to use, with a clearly visible display, which shows the date, day of the week, time (in the format 12 hours or 24 hours) and temperature (C / F). Adjustable brightness + selectable voice mode The clock has three different brightness levels (L1/L2/L3) to meet all needs. Voice mode: the hour lights stay on or light up by clapping (--sd / onsd), the voice is above 60db or you touch it, it will shine. Selectable voice modeVoice mode: the hour lights stay on or clap on (--sd/onsd), the voice is above 60db or you touch it, it will shine.