Korg TM50BK Tuner and Metronome Combo with Clip on Microphone (Black) Tuner and metronome can be used simultaneously or independently Wide detection range from C1 to C8 A wide tempo range of 30-252 beats/minute 15 rhythm variations let you practice with a broad range of musical styles Includes contact microphone that can be attached to the bell of a brass instrument, the bridge of a violin, or even to a guitar or ukulele Used for guitar, ukulele ,trumpet ,clarinet ,french horn ,oboe ,trombone ,saxophone ,flute and any other instrument