USB headset with microphone, convenient with volume control buttons. - Connection type: USB connection - Microphone function: With microphone - Volume adjustment: With volume control buttons - Design: Headset design - Cable length: Long cable The earpiece is only for one ear. This was a gift at a company event, so I don't know the details, but you can plug it into a computer and use it as a microphone and earpiece. Thank you for looking.