One model Guitar Tuner does it all! There is no research needed to determine which tuner you must buy. If your instrument vibrates and has a place to clip to that is 1" thick or less, you can tune it with the Tune-It from AxeRig. It's perfect for a Guitar, Banjo, Bass, Chello, Violin, Ukulele, Trumpet, or even Saxophone! There's no Metronome! This thing is for TUNNING. Those other tuners with a metronome, have such tiny little pulsing icons that they are impossible to see! We also don't use a mic. This feature keeps our guitar tuner from picking up UNWANTED stray noise that could confuse a tuner. Tune-It works from vibration, so you clip it on and tune. Why is the AxeRig Tune-It the best tuner on the market? Great question! First, we bought over 40 different brands and models and tested them. We then determined the pros & cons of several features and designed all the best into Tune-It. Please take a look at what we thought was most important: 1) Speed – How fast does it find the correct note? 2) Accuracy – Does it consistently find the right note? 3) Pitch Scale – Is it fine enough to get a stable “in-tune” reading, yet not so subtle it wanders back & forth too quickly? 4) Display – Can it be seen well enough in all lighting situations? 5) Readability – How well can you see when it’s in tune – even with weak eyesight? 6) Physical Adjust-ability – Can it be rotated to be seen when mounted anywhere? 7) Durability – Will it last? 8) Ease of use – Can anyone use it without the frustration of complicated settings? 9) Warranty – What is the length of the warranty? Rest assured, the AxeRig Tune-It has equal or superior features and functionality in every one of the listed areas. When you get one or more of these in your home or studio, you'll be pickin' while grinnin' from ear to ear. We're so confident you'll love our Tune-It all-instrument tuner, we're giving you an unprecedented LIFETIME WARRANTY. So BUY NOW with full confidence!