techPowerUp posted a review on the Tension Labs EAP03 Earphone Audio Processor

Tension Labs EAP03 is the name of a brand new earphone audio processor that can boost your experience in a variety of ways. The EAP03 features a built in microphone and can sample it into the audio feed, providing you with the power to control the level of isolation you want from your earphones.

Tension Labs EAP03 Earphone Audio Processor Review