MARTISAN Clip-On Tuner for Guitar, Bass, Ukulele, Violin, Viola, Chromatic Tuning Modes,360 Degree Rotating, Fast & Accurate, Easy to Use

Works great, all kinds of adjustments. This is our 2nd one.

I can't speak for other instruments, but the clip capacity allowed it to fit on both of my acoustic guitars. I am not a musician and am taking up the guitar after MANY years, but I do remember basic tuning. This device was much easier. It was ready to go as soon as the battery was in place. Turned it on, switched to "G" (for guitar), clipped it to the tuning head and was able to move straight thru the strings in less than 3 minutes .. and that was the first time. When I compared the notes to our electronic keyboard, it was dead-on. There are also instructions for alternate keys and flat, or sharp settings. I cannot speak to durability, as this was just purchased, but other than some sort of unpredictable component failure I can't imagine it suffering severe damage under normal use.

I found this to be a decent option for a clip-on tuner. It appears to register notes notes well and accurately, it has a lot of features, and it grips well. I haven't tried it yet to see if it registers in a loud room. However, the design could be a little better: 1. It has decent rotation/positioning range, but it doesn't have a hinge angle to allow the screen to be viewed upright when clipped on a guitar headstock. It always appears sideways, but I suppose some guitar or other instrument players might favor that angle/positioning when looking over. 2. When pressing the right side buttons, you have to strategically grip it so as not to accidentally push the power button on the left side. 3. The frequency range is 430-450 Hz, which is fine, but you can only cycle up (e.g. 449, 450, 430, 431...) and not cycle down [and this cycling up only is likewise for changing tuning style, e.g. C(hromatic), G(uitar)...], but it only takes a second or two, so it's not too bad. 4. I don't think it has an auto-off feature (at least the manual doesn't mention such), which would be nice if the power button is ever accidentally pressed in ones gig bag, though the power button does need to be held for a moment to turn on/off, so that is good.Again, overall, a decent option that I will keep in my gig bag. You may also wanna buy a small hardcase to give it general protection and prevent the power button from ever being pressed/held accidentally.

This thing is precise. Not sure about accuracy as I don't own a tuning fork, but I had my Guitars tuned within a minute each time. Bright display made it easy to read in early PM lighting. I have an SN1 Snark and it is slow to tune compared to this.

The beautiful photos of this thing in Amazon are impressive and made me buy. Believe me, that's not a true representation of the actual item, where the display colors are much less bright.But that's not what I dislike the most. The worst thing about this "tuner" is I have no clue if I have it set up correctly, and I suspect most of you will not know if you have correct setup either. Maybe that's why so many reviews report that the tuning is off on their instrument.I am using this on my acoustic guitar. It comes with three buttons. Three! That means you need to read the instructions.Here are excerpts from the clear-as-mud instructions:"The default tuning mode is Chromatic."OK, so what does that mean for tuning my acoustic guitar, or any other instrument for that matter?"Press O/M shortly to set tuning mode."I guess shortly means right after turning it on you press that button again? I'll assume that's correct (gulp).After you press tuning mode you go to G for guitar and then the instructions tell you,"Press A4 shortly to set A4: 430-450Hz."What? Why do I have to do that? What does 430-450Hz even mean as it regards my guitar's tuning? How about if I am trying to tune a different instrument? Or alternate guitar tuning? Do I look for a different Hz levels? Why didn't you set the correct Hz internally at the factory? There is no explanation for anything.Then, as if all that is not confusing enough, you have to go to the third button and,"On Guitar and Bass mode, press (they give the flat symbol) to set (they show three flat symbols, one spaced apart from the other two)."What does that all mean? Are they asking me to set my guitar to some range of flat? Why would I select one flat and not the three disjointed flats setting? Who knows. There is absolutely no information.And, just to confirm how careless whoever created this thing is, later in the instruction they write, "NCT-20 creen use the colorful backlit module."Look, if they don't catch a simple typo (creen) and cannot write grammatically correct English, then what else in the instructions is incorrect and nobody noticed? We, the users, cannot possibly know.Until I can tune my guitar by ear I will have to rely on a tuner. This is nothing I can rely on. If it was not for Covid I'd go to the store and send it back, but since I just don't want to take an unnecessary risk, into the trash it goes.

Just learning the guitar and this tuner works awesome. Easy to set up and use. Clips on easily.

I know there are some reviews that make this tuner sound complicated... but it is not. It is very easy to understand and versatile. If you have never used a tuner before or are new to your instrument, then it could be a little difficult for the first few minutes until intuition kicks in. I love that it allows me to tune my classical guitar to 432hz with just a few clicks on the button and it keeps the setting. I almost did not purchase because I thought it would be difficult but if you can't figure out how to use this tuner, then I doubt you could figure out your instrument. It swivels easily without losing grip (has two screws to tighten the grip if it gets loose) clear and bright screen, 3 simple buttons and the best part... I can set it to 432hz! It goes from 430hz up to 450hz. This is my guitar's new best friend!

I have 3 or 4 other top brand tuners and this is just as good probably better . Adjusts really well , precise read outs , and does come with a battery that seemed to fall out of nowhere … price is right too . Recommend…