From an RCA Brochure:

“An AM radio/clock with a personality all its own. Hangs on the wall or perches on its own gleaming stand. Unique vertical design features AM radio with high-efficiency speaker and built-in antenna. Cordless operation on 6 “AA” penlight batteries for the radio, one “C” battery for the clock (batteries included). Solid state reliability and efficiency – no warm-up wait. Plastic case in Sculpture White/Accent Red (RZD313Y).”