The proven choice for any instrumentalist, our affordable CA-1 Chromatic Tuner is packed with features missing from other low-cost chromatic tuners. Pure Major and Minor Third indicators benefit any ensemble player. Auto Power Off preserves battery life. Product Highlights: Compact Chromatic Tuner, ideal for brass band or orchestra. Wide range of pitch detection covers C1-C8. High-precision LCD needle-type meter for stable tuning. Sound Out produces a reference tone from the internal speaker. Calibration Function supports a variety of concert pitches. Auto Power Off function conserves battery life. Memory Backup function. Approximately 100 hours of continuous use. Ultra-compact, LCD Needle-Style Chromatic Tuner High accuracy and superb functionality have made Korg tuners the worldwide favorite. And now, the new CA-1 joins the best-selling CA series of band tuners. With even more features, like a pitch reference tone and marks for pure major thirds and minor thirds, the CA-1 Chromatic Tuner packs basic functionality and convenient tuning functions into an ultra-compact body.