1. 3 years life time 2. Date 24-hours 3. Shows time\calendar\temperature\alarm clock function 4. 5 colors option 5. Environm Feature1. Material: ABS2. Water power work display: time ,date ,temperature .3. Special materials (wine,vinegar, ect)with water can supply the power to work. Advantages1. 24 hours cycle date: displaying the numbers clearly.2. Fully display the time, date, temperature, alarm ...