An external microphone is not required, however for the best accuracy and dictation quality, especially in noisy environments, we recommend a good-quality unidirectional microphone. This is especially true if you are using a laptop, and your environment is not silent.
Our number one recommendation is the Philips Speechmike Premium Touch SMP3700. This mic is far and away the best option we’ve come across for dictation. Not only does it have terrific noise-canceling capabilities, but it also has the ability to program hotkeys to enable you to do even more with Talkatoo. You can program a button to start and stop dictation, to jump to a new line, or anything else you can think of. Read this helpdesk article to learn how to easily configure your SpeechMike with Talkatoo. There is also a wireless version available (see the SpeechMike Air listed below).
Other Wired options
Andrea NC-181VM headset
Sound Tech GN-USB-2 18 Inch Professional Uni-Direction Noise Canceling Gooseneck Stereo Microphone with 10 FT USB Cord
Plantronics Voyager Legend Wireless Bluetooth Headset
Plantronics Voyager 5200
Philips Speechmike Premium Air SMP4000*
*The SMP4000 wirelessly connects to a dock, which is plugged in via USB. It is not bluetooth, so does require the dock, or the add-on accessory AirBridge (ACC4100).