Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear Economical, sensitive microphone for recording phone conversation Works great with landlines and cell phones Records directly to voice recorder, Recording Device Includes all necessary adapters Transcription Software Not Included