CablesAndrea Pure Audio USB Sound Card Adapter $37.50 + $7.95 S/H
Use this USB-SA External Digital Sound Card to connect a wireless microphone’s receiver to a computer’s standard USB port. This higher-end unit has built-in audio filters to improve the audio stream. Many lower-end adapters do not have this feature and may actually add noise to the audio signal. Using a lower-end connector or pass-through adapter may result in reduced captioning accuracy.