Feature:1. Chromatic tuner pedal designed for guitar, bass and most musical instrument tuning.2. Wide frequency design and high precision, can be accurate to 1 point.3. With large and bright LED display, easy to observe tuning status.4. True bypass footswitch for turning on/off the tuner pedal.5. Full metal shell and compact size design, durable and portable.Specification:Features:Chromatic tuner pedal designed for guitar, bass and most musical instrument tuning.Wide frequency design and high precision, can be accurate to ±1 point.With large and bright LED display, easy to observe tuning status.True bypass footswitch for turning on/off the tuner pedal.Full metal shell and compact size design, durable and portable.Specifications:Tuning Range: 12Hz-4186HzInput: 1/4 inch monaural jackOutput: 1/4 inch monaural jackPower Supply: DC 9V Power Adapter (negative inside and positive outside)Item Size: 9 * 4 * 3.5cm / 3.5 * 1.6 * 1.4inItem Weight: 215g / 7.6ozPackage Size: 11 * 6.5 * 6cm / 4.3 * 2.6 * 2.4inPackage Weight: 290g / 10.2ozNote:The power adapter is not included.Package List:1 * Tuner Pedal1 * User Manual(English & French & German & Italian & Spanish & Japanese)Package List:1 * Tuner Pedal1 * User Manual(English & French & German & Italian & Spanish & Japanese)