If you watch the news, you hear all the time about the Dow Jones Industrial Average and other aÂ­verages like the S&P 500 or The Russel 2000. These are market averages designed to tell you how companies traded on the stock market are doing in general. The Dow Jones Industrial Average is simply the average value of 30 large, industrial stocks. Big companies like General Motors, Goodyear, IBM and Exxon are the kinds of companies that make up this index. See Dow Jones & Company for details on how the average is calculated.
some psaps also bear a resemblance to bluetooth devices or earphones used with mp3 players depending on the make and model but that s where the similarities end unlike psaps hearing aids are fda approved medical devices which are prescribed and fit by licensed hearing healthcare professionals
Each component, sub-system or accessory that is considered a medical device and is commercially available needs a separate UDI unless the components are part of a convenience, medical procedure, IVD kit or configurable medical device system that is marked with its own UDI. Kits should have their own UDI.