The black SN6X Clip-On Ukulele Tuner from Snark is a clip-on tuner that has a high-sensitivity vibration sensor and a full-color display that rotates 360°. It can be used to tune a ukulele for applications such as rehearsals, recordings, live stage, theater, and more. The tuner can be utilized on either the front or the back of a headstock to accommodate left- or right-handed players.