Snark ST-2 Tuner, Tuner, Chromatic clip-tuner, Successor of the Snark SN-2 with faster response and improved display, Rotatable 360 ??degrees colour display, Flat tuning / transpose function, Calibration: 415-466 Hz, Tempi: 40-250 bpm, Highly sensitive vibration sensor, Built-in microphone, Including battery