Features: -The dial is simple, with white numbers and a purple background for easy reading. -It uses a loud ringtone, suitable for heavy sleepers, mild hearing loss or even deaf people. -Using quartz movement, no ticking sound, accurate time, energy saving and durable. -With the backlight, press the button and the time will be clearly visible at night. -Suitable for kids, adults and teenagers. Specification: Material: PVC+metal Colour: purple Size: 8.5*5.2*12.5cm Power supply: 1*AA battery (not included) Note: please use 1 AA carbon-zinc battery, because alkaline battery or rechargeable battery may affect the life of the movement and the accuracy of the time. .