The multi-mode soundhole tuner from Ortega is designed specifically for acoustic guitar, ukulele and other acoustic instruments and has four pre-installed modes for guitar, bass, ukulele and chromatic. The chromatic piezo equipped tuner provides fast and accurate tuning, while the OCST-1BK is almost invisible when installed in the soundhole. The non-marring mounting clip and the rubberized shockproof housing offers easy installation and handling. A bright 2-color display indicates whether the instrument is in tune by full-surface backlighting.
The product looks good, installs easily, and the colors on the screen are clear. I'm giving a three-star review because the tuner doesn't pick up the E string and doesn't detect it as quickly as the A string. In a live situation where you need to tune your guitar quickly, the tuner helps with 5 strings and you do the last one by ear.
