Creative 70SB154000000 Sound Blaster R3 Sub Instant Studio Recording And Streaming Kit Complete Audio Recording and Streaming kit that comes with a dynamic microphone for vocals and a clip microphone for your guitar Utilizes simple USB connectivity, which means that PC and MAC users can now enjoy simplified connectivity to desktop and notebooks with a single USB cable R3 has a 600 ohm amplifier, which means you can even use studio-grade headphones to monitor your recording Features Crystal Voice Technology, a suite of advanced audio enhancements that reduce noise and echoes, giving you crystal clear recordings Expands your laptop audio connections to more than one input, such as the dual microphone input or line-in which allows you to sing and play with your favorite guitar tunes simultaneously, as well as plug in other sources of music such as your MP3 player