This one attaches to your guitar and no matter what sound is going on around you it helps you get in perfect tune

And the tuning is dead on.

It will make a great back up for a quick effortless tune.

I actually enjoy tuning and use it often.

Good purchase, accurate tuning !

Considering many artists tune by ear, the tuning this provides is sufficient enough for most.

The tuning is not fine enough: it will show you as being in tune when you are really not, and it won't provide any info to make your tuning more precise

With this device it's as easy as tuning your string up and down until the proper letter shows on the dial, with the light centered on the green line

The color changes when tuning make it easier to use than tuners that only have a monochromatic background or a pitch indicator.

The display is bright and crisp and the tuning seems fairly accurate with no jumpy needle or inaccurate readings.

Has made tuning my guitar so much easier!

accurate, nice design....made real solid + looks great...tunes great.....will make further purchase in future

A must have to anyone new to guitar tuning-like me :)

I have a tin ear, but I tested this against a well-tuned guitar and it was really accurate.

With all of the features, capo tune, visual metronome, acoustic as well as vibration tuning, plus calibration

Crazy to enjoy tuning

The tuning is very accurate and it's simple to use