This days countdown clock can provide you a very long time countdown. The max count days is 10000 days(9999 days 23 hours 59 minutes 59 seconds)! You can use it to countdown a long term events, retirement days countdown, etc. The digit character is 1.8" high, the overall size is 53x10x4cm and the weight is 1.06kg(2.33lbs). Very affordable compared to other types long term digital days countdown clock. It works under 6VDC, the power adapter is 100v-240vac input and 6VDC output. Low power consumption. The control distance is around 5-8 meters, this is pretty helpful especially when the clock is mounted out of reach.