The Clockit, called “Lockit” by many, is a small, highly accurate portable timecode and colour videosync and wordclock generator. Audio and video machines such as DAT recorders, and Betacams can be genlocked to the Clockit Box, thus giving a very low drift between equipment working together. Typically, the drift will be less than 1 frame per day, without connecting cables or radio links. The Clockit can be jamsynced with external timecode, or set with Aaton ASCII code. The Clockit is especially useful in multicamera Betacam shoots, where a Clockit on each camera and one on the audio recorder will reduce drift between machines to under one frame a day.