Chromatic tuner pedal for electric, acoustic guitar and bass.Innovative mini pedal tuner,small size.Bright LED display for reading the tuning information easily.Ture Bypass circuit design, no signal output in tuning state - Mute tuning.Easy to carry, superior shape. A fascination representative product among pedal tunerLED highlight screen, highlight display, clear and bright wordMute tuning mode, suppress the audio signal output. No any embarrassed weird voice9V effect power supply is used to power the equipmentDouble stamp on the device, entering into adjustable A4 value range: 430-449HZAluminum alloy body, hard and firmMute tuningLED screenMaterial: Aluminum alloyAdjustable A4 range value, . 430-449HzPower Supply: DC 9V(not included)Colour:blackMaterial:Aluminum alloySize:41 x 41 x 43mmPackage Contents:1 x Pedal TunerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.