A Clamp On Microphone Tuner Attachment at an amazing price. This handy microphone features a 3 foot cord terminated by a 1/4"(6mm) plug which connects to any electronic tuner that has a 1/4"(6mm) input socket. The microphone easily clamps onto your instrument's bridge. It is highly accurate and isolates your instrument's sound when tuning in loud environments. This pick-up is a very versatile and practical partner to any tuner with a 1/4" input socket.