Fast & : Experience tuning with +/- 1 cent accuracy. Housed in a mini pedal 's designed to fit on any pedalboard, it lets you to spend less time tuning and more time playing.Easy to Read: This tuner pedal is suitable for wide range tuning. LED Light indicator shows the working state. Deluxe LED display leads clear results of tuning. Tuning range is A0(27.5Hz) ~ C8(4186Hz).True Bypass: Improved analog circuit, real signal, true bypass for tone coloration.Solid Construction: This tuner pedal is made of high quality alloy, durable and sturdy. Mini size will save lots of space on your pedalboard. It's suitable for seven strings guitar or string .NOTE:The 9V adapter is not included.Material: alloycolour: WhitePackage Contents:1 x pedalOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.