D'Addario Guitar Tuner - NS Micro Guitar Sound Hole Tuner - For Acoustic Guitars, Ukuleles - Non Marring Sound Hole Clip - Quick & Accurate Tuning

I purchased this item with my own money and have not been provided with any incentives to provide this review. This is my favourite tuner, its sleek, accurate and easy to use. Hardest part is placing it inside the sound hole of the guitar. Good value for money, battery lasts well, is easy to see and use and allows you to look at the specific string and see where adjustments are required unlinke many other tuners that are either clipped onto headstocks or connected via amps etc. Makes a great gift for any acoustic guitar player or a great addition to your kit to replace an old tuner.

Great little gadget, works a treat and means you don't have a stupid tuner poking out the top of the guitar head.

Nice and unobtrusive soundhole tuner. Nicely thought out design. Works well and reasonable price. Display easy to see. Second one I've bought. Not sure how long the battery would last but easy enough to replace.

This is an astonishing, simple and discreet bit of kit. It works on all the strings of a 12 string guitar which are known for being difficult to tune. You can also use it for open tuning. For the price you cannot go wrong. There is a warning on the box that the clip that holds the tuner in place can react and leave a mark on certain finishes. I've got it fitted on my 12 string guitar tuned down a semi tone. It's very accurate to my ear. I can't comment battery life as I have only just recently fitted it. In general most reviews are very positive about this tuner and I think it's worth the money.

A neat little tuner that clips on OK (Guild D-50). It has survived it's first pub gig and worked as advertised - easy to see the display in low light too. I think the key to this device is to fit it where there is a single thickness of wood. On my guitar there was only one point where there wasn't soundhole reinforcement strips underneath and the pickguard was not too close to the soundhole - you need at least 7.5mm from the edge of the soundhole to the pickguard (if fitted) to fit this - I hope this helps. Update: Still working fine 11 months and 70 gigs later and on original battery. Has only once fallen off and ended up rattling around inside the guitar like a 2 ton plectrum. It's fitted to a sound board that is 3mm thick - any thicker I think puts too much strain on the clip which is probably why some people have had them break (minimal instructions with product don't give any guidance on this, though I note that their website now says 3.81mm thickness) Update 2: Three years of use and still going strong and battery life is good - the only other issue I have found is if you are playing outside on a sunny day as during Covid, the display is very difficult to see. Hope this helps.

Loved the look and the performance and the idea but... only a couple of weeks into ownership the plastic clip that grips the sound hole has snapped. I know I shouldn’t have done this but I’ve tried to superglue I as I don’t return things lightly, or even put reviews up, but this is such a great idea badly executed I had to let people know. I’ll be pushing for a refund if my fix doesn’t work even if I’m past the deadline. How do companies make such great solutions so badly, even though it’s a great idea??

I do like this tuner. It is small and sits comfortably on the guitar. It is inconspicuous to an audience but easily seen by the player. It is a little fiddly to reach to power on and off, although it has an auto off, but i soon got the hang of it. I switch it off when tuned to save the battery. I had to adjust the clip to get it to grip my guitar. I really like it. It lives permanently on the guitar so it is always there for tuning.

Great little item. Fits my Martin custom shop dread with forward shifted bracing and sits centred in sound hole (just - it’s very close to bracing, but doesn’t touch or vibrate). Won’t fit my Lowden with their reinforced sound hole (they add a ring to the inside so it’s almost double the soundboard thickness). Seems accurate to my ear and against other tuners I have. Plus you can see it all the time whilst playing, so you won’t leave it on by mistake. Can see it may need to be shifted round slightly on some guitars dependant in bracing or supports.