The Centre of the Earth alarm clock from Newgate Clocks has a spherical design and a multi-function LCD screen, creating a modern yet retro look. British designed, this alarm clock has a 12 or 24-hour time display, temperature display, a digital alarm and a snooze function for a little extra shut-eye. The screen will be dimmer when running on batteries alone, but bright when you hit the button on top. If you have the included USB cable connected for charging, the screen will be really bright. The display will only be backlit continuously when connected to a power source with the USB cable or a DC adaptor (not included). 3 x AAA batteries (not included) are required to retain the time and alarm settings. Key features: 12 or 24-hour format Acrylic spherical design LCD dispaly screen Alarm and snooze function Temperature display 0-37°C Night screen brightness setting USB mains power 1m cable included