Digital alarm clock with dual alarm and Snooze function, Adjustable display brightness (High Low Off), Base for wireless charging, USB output for charging Smartphone Tablet and any USB device (5V 1A), 12 24H time format, Backup battery 1 x 3V CR2032 lithium battery (not included), Power supply via AC adapter 100-240V - DC 5V 2A (included) - SVE 236WI