KORG WH Made In for Brass Bands and Orchestras TM-70F Tuner/Metronome, White, Japan,

The tuning function and metronome function can be used simultaneously. A wide detection range from C1 to C8 supports a wide range of instruments. Calibration function is included to support a variety of concert pitches. Focus mode and trace mode for even greater tuning accuracy. Long-life design with a battery life of up to 250 hours. More precise tuning is possible by using the optional contact microphone CM-400.