As it receives up-to-date weather conditions from the outside transmitter, this indoor wireless station displays the outdoor temperature in both F (Fahrenheit) and (C) Celcius, the indoor temp, and more! It shows month/date/time and has a snooze alarm. Includes stand or can be mounted on wall. Plastic. Uses 6 AAA batteries (not included). Outside transmitter 4"L; indoor wireless station 6"L.