According to the search results, pitchers have a six-inch rubber receiver inside their hats that communicate the pitch call with a computerized voice - either in Spanish or English - that will tell the pitcher, for instance, "fastball up" or "curveball, down and in". The PitchCom device, which is a new piece of technology that allows catchers to relay signs to pitchers, has a receiver in the pitchers cap, and the catcher has one in his helmet. The PitchCom device has been tested in the Class A California League and has drawn rave reviews from teams who have tried it out during spring training. The PitchCom device allows catchers to press buttons on a pad strapped to their wrist to call a pitch, and that sign is then heard by the pitcher through a speaker in the pitchers cap. The PitchCom device can also reduce the number of mound visits in which pitchers and catchers go over signs.