Korg CA-50 Chromatic Tuner Catalog ID: TNKORCA50 A portable, pocket-sized tuning solution. The CA-50: the standard tuner for orchestral instruments, now with even better visibility.SpecificationsScale: 12 note equal temperamentDetection Range (Sine wave): A0 (27.5Hz) C8 (4186Hz)Reference Tone: C4 (261.63Hz)C5 (523.25Hz) One octaveTuning Modes: Meter mode, Sound Out modeCalibration Range: A4 = 410Hz480Hz (1Hz steps)Detection Accuracy: +/- 1 centSound Accuracy: +/- 1.5 centConnectors: INPUT jack (1/4'' monaural phone jack), OUTPUT jack (1/4'' monaural phone jack)Internal Speaker: Dynamic Speaker (21mm)Power Supply: AAA battery (3.0 V) x 2Battery Life: Approximately 135 hours (zinc-carbon batteries, Meter mode, A4 continuous input)Dimensions (W x D x H): 100 mm x 67 mm x 17 mm / 3.94'' x 2.64'' x 0.67''Weight: 81 g / 2.86 oz. (including batteries)Included Items: Two AAA batteries for verifying operationAccessories: CM-200 Contact Microphone (Sold Separately) In Stock $26.99 Wish List Buy Continue Shopping