1. Shell material: plastic 2. Mirror material: acrylic plastic mirror 3. Dial material: plastic 4. Movement type: electronic 5. Display type: LED 6. Display type: number 7. Power source: USB external power supply 8. Remote control battery: CR2032 button battery (delivered with battery) 9. Special functions: decoration, thermometer, luminous, alarm, chronograph, calendar, humidity measurement 10. Dimensions: 30 x 30 x 3.5 cm