We have noted a recent surge in microphone requests for use with the Apple iPad and iPhone Siri speech recognition applet. While the built-in microphone performs reasonably well, the following microphones are KnowBrainer tested and certified to improve speech applet accuracy. NOTE: That most of the following microphones additionally require the iPad & iPhone Headset Microphone Adapter (located in the drop down menu after clicking purchase) to make a proper connection into the microphone jack.