This is an RCA RCD11 digital alarm clock.
The black plastic clock has a lights/ snooze button on the top. On the back it has an alarm on/off switch; a minute and date set button; a 12/24 hour and year button; an hour/month button; an on/off temperature sensor button; and a switch for setting the alarm, date, time, and lock.
It measures about 3" tall, 5.25" long, and 1.75" wide and uses 3 "AAA" batteries not included.
The clock is in good pre-owned condition and has been tested and works.