Describe size: 8.5*12cm Silent, no ticking: The second hand makes no annoying noises and does not tick. Ideal for work and sleep environments. Features: A colorful life, adding color to your bedroom, living room and office. Large text, clear reading, clear at a glance, metal hands, smooth operation, robust and durable. LARGE SILENT NUMBERS: Our dual alarm clock displays 3D large numbers instead of printed cardboard, so you can easily check the time accurately and without ticking, and the creeping second hand ensures a quiet sleeping and working environment. Usage: Small design and battery, the alarm clock is portable. Perfect for school, office, bedside table, travel, outdoor, reading and nightstand. Easy installation: A simple on/off button activates the light setting. 'Warning.' Turn the dial to set the time and alarm time. Press the button to activate the backlight in the dark.