Material: ABS.Features: time, temperature, date, alarm clock, memory, manual brightness adjustment, automatic brightness adjustment, desktop/wall mounted.Power supply method: DC5v/USB cable.Product size: 235 * 93 * 40MM.Packaging box size: 245 * 48 * 98mm.Packaging list: Kraft paper box+clock+instruction manual+USB cable (1.5 meters long).Function introduction:1. LED time display.2. Display time, date, temperature, alarm clock.3. Temperature range: 0 ° C-50 ° C (32F-122F).4. Automatic brightness dimming function.5.4 ons EST, UP, DOWN, RESET.6. Three sets of alarm clocks: AL1, AL2, and AL3.7. OLED screen automatically performs time, date, and temperature conversion.8.AL1, AL2, and AL3 alarm clocks.9. Can be placed on a desktop or hung on a wall for use.10. Date: January 1st, 2000- December 31st, 099 Default startup.11. Power supply method: Memory battery CR2032, working power supply is DC5V DC power supply