Gerald Wills and Robert Catalano, the president and vice president of Puck Technology, entered guilty pleas Monday (local time) at a federal court in Pittsburgh, Pennsylvania.

They were charged last month with selling the Whizzinator penis - a lifelike device used to emit clean, realistically warm urine instead of the user's true urine.

The device, which came with its own heating and Yellow River urine packs, was sold on the internet.

Wills, 65, and Catalano, 62, both from California, face sentencing on February 20, the Post-Gazette said.

Puck Technology has stopped operating, the report said.