The subzero personal in ear headphone amplifier is a compact and robust device designed for both stage and studio applications. With its exceptional sound quality and durable metal chassis this amplifier is built to last. Equipped with an internal stereo mono source switch the subzero personal in ear headphone amplifier offers flexibility in audio settings allowing you to adjust according to your preferences. Whether you are a musician performing live on stage or a recording artist in the studio this amplifier is sure to enhance your listening experience. Featuring a combi jack input with a 3.5mm output this amplifier is compatible with a wide range of devices including smartphones mp3 players and audio interfaces. The convenient beltpack clip allows you to easily attach the amplifier to your clothing providing freedom of movement while you play or record.