Yamaha Clip-on Tuner Metronome TDM-37S Opened for photography, but it is an unused long-term store inventory item. Please purchase only if you don't mind. An ultra-compact, lightweight chromatic tuner that can be attached directly to an instrument. With metronome function. Features a new LCD meter with a high-brightness white backlight. Clip (small) included. 【Target instruments】Trumpet/Cornet, Trombone