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Theremin

Fail

Shoppers spend only $29K a year here, so Theremin is a Fail.

Flapen Score
39
39 / 100
Ranks 117 of 171 Musical Instruments & DJ niches · −5 vs the category median of 44
Market size
£29K/yr42K searches / yr
90-day growth
-23.2%search demand this quarter
Competition
77%top-5 click share · 12 brands · 20 sellers

Flapen Score

Theremin against its category

The dotted line is the Musical Instruments & DJ average. Past it, Theremin is stronger. Inside it, weaker.

39Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Theremin market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Theremin 42K times last year and spent an estimated £29K. The top 5 brands take 85% of clicks. Flapen scores it 39 out of 100, a Fail.

01 · Demand

1.3% of searches ended in a purchase last week.

Shoppers searched for this 42K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 1.3% of those searches ended in a purchase. Searches in the last 90 days moved -23.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated £29K a year.

Searches, last 12 months
42K
Growth, 90 days vs prior 90
-23.2%
Conversion, latest week
1.3%
Market size, estimated
£29Ka year
Top search term
theremin27K searches a year

02 · Price

A sale here is worth £55.60.

Listings sell for £55.60 on average, from £25.13 to £273.80. Amazon reports units sold in ranges. This niche sold 250 to 500 a year. The average listing sells 0 to 100 of them. At £55.60 that is £0 to £6K a year per listing.

Average price
£55.60inside the $15 to $100 sweet spot
Price range
£25.13–£273.80
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
250–500
Units per listing a year
0–100
Revenue per listing a year
£0–£6K
Returns
1.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

79% of listings pay for placement with sponsored ads. 71% ship with Prime. On an average day, 17.7% of listings are out of stock. The average listing ranks #44 within Musical Instruments & DJ. It carries 948 reviews at 3.78 stars, so a new listing needs social proof before a better product.

Sponsored listings
79%
Prime listings
71%
Out of stock, average day
17.7%
Average rank
#44in Musical Instruments & DJ
Average rating
3.78 starsAmazon United Kingdom average 4.36 stars
Average reviews
948per listing
Listings tracked
14

04 · Newcomers

Amazon counts 0 of last year's 3 launches as successful.

3 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 38 months on average, so the names here are settling in.

Launched, last 12 months
3
Successful launches
0Amazon's first-year sales bar
Average brand age
38 months

Products

Top Theremin products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 77% of clicks. A locked shelf that new listings rarely crack.

£0£3K£6K£9K£12K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)3 products missing review or click data not plotted

Brands

12 flat

Sellers

20

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

11%

  • Stylophone34%
  • MOOG18%
  • VIOPDER15%
  • Iegefirm12%
  • Dioche6%
  • Goshyda3%
  • Open — no brand owns it (6 brands, 11%)

Demand

Theremin search demand

Weekly searches over the year, seasonality beneath. Pick a range.

900700Spike '26JanFebMarAprMayJunJul

Peak months: Feb · busiest ÷ quietest = 1.6× · 7 of 12 months tracked

Search terms

Top Theremin search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • theremin27K/yr
  • theramin5K/yr
  • theremin instrument7K/yr
  • stylophone theremin2K/yr

Reviews and returns

What reviews say buyers love and hate about Theremin

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Ease Of Use33%−0.25

However I've found this very difficult - at first I thought it was going to be one of those things I couldn't do

Noise Level17%−0.09

First impression was that it's not as loud or smooth sounding as you think after watching a couple of vids

Audio Quality17%+0.01

First impression was that it's not as loud or smooth sounding as you think after watching a couple of vids

Accuracy-Overall7%−0.05

playing with any precision is extremely frustrating

Love

Portability17%+1.31

Very portable

Instructions/User Manual/Troubleshooting17%+1.31

Great fun once you've learnt how to adjust the settings

Advertised Vs Actual Product17%+1.31

As expected

As described and works great

Audio Quality16%+0.01

The sound is great

Headphone output is a welcome addition

best sound quality material is durable

Durability13%+0.95

it is very durable which is good becuse kids will want to touch It

best sound quality material is durable

Return

1.1% Return rate 0% Fixable by listing

Functionality-Overall24%▁▃▁▁▄█
Audio Quality12%▁▆▄▁▅█

First impression was that it's not as loud or smooth sounding as you think after watching a couple of vids

Defective Material/Parts10%█▃▂▁▁▁
Tune Retention10%█▃▄▁▁▁
Durability7%▁▁▇▁█▁

FAQ

Common Theremin questions

Answered from the same tracked data.