Unfortunately, many computers come with a single input for both headphones and microphone. A simple splitter will not allow maximal microphone input. Additionally, many input ports in combination with a standard 6″ male/male cable do not provide a connection that results in optimal captioning accuracy. The solution is to plug the receiver into a Pure Audio USB Adapter cable that is then plugged into one of the computer’s USB ports. The same port must be used each time the microphone is plugged into the computer. This cable is included with all purchases of the high performance microphone.