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SIGMA Junior 3/4 Size Acoustic Guitar, Solid Spruce Top, Dao Back & Sides, Natural Gloss, Rosewood Bridge, Premium Name-Brand Steel Strings, Mini Acoustic Guitar Suitable for Travel, Right (20MINI)

  • Based on 35 reviews
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Availability: Only 8 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Sep 27
Order within 12 hours and 39 minutes
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Model: SIG20MININAT


Features

  • Standard Specs - Total Length: 37.3" ; Scale Length: 23.5" ; Total Body Length: 17.5" ; Number of Frets: 20 ; Premium Brand EXP16 (Phosphor bronze) steel string ; Solid tuning machine heads ; Item Dimensions: 37.3" L x 14.2" W x 3.8" H. Neck radius is 320R (=12.6 inches)
  • Handcrafted & Materials - The SIGMA acoustic guitar features handcrafted sturdy construction with solid Spruce top and ultra rate Dao sides and back with extremely high-end looking. Rosewood fingerboard & bridge. Natural gloss polished body w/ protective top binding. Beautifully designed body and size for the on-the-go & travel purposes. By using Dao, a dense wood it produces strong high-mids complemented by full and punchy low-mids and bass sound effect.
  • Warm, Rich Tone - New SIGMA models give more than a generous nod to vintage instruments, but they have modern elements to their sound and produce an open, warm tone with mids and bass. SIGMA guitar remains responsive and retains its tonal integrity, which are perfect for musicians-in-the-making or advanced players to play like the pros.
  • Quality, Authenticity, Affordability - Exquisitely designed with about 37-inch length, comfortably befit both beginning and experienced guitarists. Every detail matters. SIGMA provides the best quality for everyone on the music journey.
  • Every item is carefully inspected before shipping to ensure top quality. With our 30-Day Return Guarantee and dedicated customer support, you can shop with confidence!

Brand: SIGMA


Color: Natural Gloss


Top Material Type: spruce


Body Material: Dao


Back Material Type: Dao wood


Neck Material Type: Dao


Fretboard Material Type: Rosewood


String Material Type: coated phosphor bronze


Hand Orientation: Right


Scale Length: 25.6 Inches


Item Weight: 7.13 pounds


Product Dimensions: 37.3 x 14.2 x 3.8 inches


Item model number: SIG20MININAT


Date First Available: June 9, 2021


Back Material: Dao wood


Body Material: Dao


Color Name: Natural Gloss


Fretboard Material: Rosewood


Item Styling: fingerpick


Scale Length: 25.6 Inches


String Material: coated phosphor bronze


Top Material: spruce


Neck Material Type: Dao


Number of Strings: 6


Material Type: Dao


Size: 3/4


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Superb quality, beautiful woods and outstanding sound. Amazing for its price.
Model: SIG20MININAT
Beautifully crafted with superb woods not found in far more expensive guitars. The sound is impeccable and more vibrant than that of my large guitar. I highly recommend it.
Reviewed in the United States on May 29, 2025 by Centraal

  • Decent for an inexpensive guitar
Model: SIG20MININAT
It was a nuisance finally getting my hands on the guitar… they first shipped the wrong guitar, then the next one was lost in shipping, and finally this one. Now that I have it I’m satisfied for the price since I just needed a beater and travel guitar. The original setup wasn’t bad… decent action. Fret ends are not bad at this price point but could use some smoothing and polishing. The top is decent but has a slight warpy unevenness and the headstock has a fairly ugly stain discoloration… maybe an error in finishing or just open wood grain (not worth returning given the 3 weeks it took for this one to get here). Those are all the QC issues that are minor and ok in a guitar at this price. It plays pretty well, has a neck shape that suits my hands, and sounds pretty good for a smaller body size. QC and sound are not as good as a Firefly I have but that guitar is more money and too big for travel. I had hoped for a little better QC given the reviews but it’s good for my purposes. MUCH better guitar than a Jim Dandy I tried out. If you need an inexpensive smaller guitar it’s worth considering. ... show more
Reviewed in the United States on November 19, 2024 by HHIBIRD HHIBIRD

  • Bad frets, terrible buzzing, unplayable.
Model: SIG20MININAT
The media could not be loaded. Just got the guitar and sadly disappointed by the fact that there is terrible buzzing at the 12th-14th frets across most strings. Not sure if it's a setup issue or the frets themselves but I'd expect the guitar to pass inspection, which this one clearly does not. Other than that the guitar seems well put together and looks nice. Will be returning it for a replacement. UPDATE: I got a replacement guitar and unfortunately it has the exact same problem but on different frets. This time frets one and two are completely unusable, terrible buzz. I don't recommend these guitars at all! ... show more
Reviewed in the United States on February 4, 2025 by Darkmatter661

  • Quality is better than expected
Model: SIG20MININAT
Nice sounding playing guitar. Perfect size for in the couch. I'd buy again.
Reviewed in the United States on May 23, 2024 by Kram

  • Outstanding little guitar for the money
Model: SIG20MININAT
Sigma did a fabulous job with this model but don't hesitate to exchange if you get a dud (like I did). The 3/4 Junior sits somewhere between a Baby Taylor or Little Martin and the Taylor GS Mini in regards to size. It does not come with a bag but is incredibly pretty and playable right out of the box. It feels great in hand and is resonant and bright with plenty of sustain. This is a travel guitar and will not sound like a full-sized guitar and does not have a present low end. However, I found it pleasing to look at and listen to and fun to play. This would be excellent for a young person, campfire, office, travel, or couch guitar. Well done, Sigma. ... show more
Reviewed in the United States on December 4, 2024 by Sheridan

  • Buy and play
Model: SIG20MININAT
Take it out of the box and start to pick or strum might need very slight tuning, but works 👍
Reviewed in the United States on June 18, 2025 by Working in the snow

  • Most bang for the buck in an affordable guitar!
Model: SIG20MININAT
The media could not be loaded. I like everything about it. It sounds great, plays great, it's extremely comfortable, and it's beautiful. It punches way above its weight for how affordable it is! This is an amazing deal for a smaller body guitar. I've had trouble finding time to do the video review because every time I pick it up, I start playing and lose track of time. (It's really fun to play) My favorite part though is that I can sit in a regular chair and play guitar! With it's smaller size, I think it would be great for kids, for women who might be uncomfortable with a big dreadnaught, or for people who want an incredible travel guitar. It's perfect! ... show more
Reviewed in the United States on December 7, 2023 by Andrew Grant Mazak

  • Don't be fooled by the spruce top. It's hiding under an unnatural sound-deadening finish.
Model: SIG20MININAT
I can't say how disappointed I was in this guitar's finish. It's listed as "natural gloss" but except for the neck the wood all looked like it was dipped in clear plastic and was extremely reflective. Nothing natural about it, including the obvious blemishes.
Reviewed in the United States on June 9, 2025 by Day

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