Theremin
FailShoppers spend only $29K a year here, so Theremin is a Fail.
- Flapen Score
- 39 / 100Ranks 117 of 171 Musical Instruments & DJ niches · −5 vs the category median of 4439
- 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.
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.
Top sellers
by 90-day click share
Stylophone Theremin Award-Winning Portable Touch-Sensitive Synthesizer with Retro Analog Sound Built-In Speaker Delay & Vibrato Effects Slider Control Compact Battery-Powered Design
- Price
- £88.47
- Rating
- 4.2/5
- Reviews
- 88
- Age
- 2y ago

MOOG Theremini - Theremin with Pitch Correction CV Out Built-In Tuner and Speaker AniMOOG Synthesizer Sound Engine with 32 Presets and LCD Screen
- Price
- £273.80
- Rating
- 4.5/5
- Reviews
- 613
- Age
- 8y ago

VIOPDER Mini Theremin Musical Electronic Instrument with Screen Display Gift Easy to Use Black
- Price
- £32.08
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 1y ago

Iegefirm Theremin Musical Electronic Instrument with Screen Display for Boyfriend Music Fans
- Price
- £28.37
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 4mo ago

Stylophone The Original Pocket Electronic Synthesizer | Synth Musical Instrument | Synthesizer Keyboard | Stylophone Instrument Synth
- Price
- £25.13
- Rating
- 4.6/5
- Reviews
- 11,031
- Age
- 10y ago
Trending
90-day click momentum
Iegefirm Theremin Musical Electronic Instrument with Screen Display for Boyfriend Music Fans
- Price
- £28.37
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 4mo ago

YUKERMARB Mini Theremin Musical Electronic Instrument Type C Interface Multiple Adjustable Voices Theremin Vintage Musical Module
- Price
- £34.69
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 6mo ago

Dioche Audio Theremin Musical Module Color Display Voices Adjustable Design Small And Exquisite Item for Friend
- Price
- £28.27
- Rating
- 4.3/5
- Reviews
- 3
- Age
- 1y ago

Audio Theremin Vintage Music Module with Color Display Electronic Musical Instrument Adjustable 70 Tones for Musicians and Music Lovers
- Price
- £27.16
- Rating
- 4.4/5
- Reviews
- 2
- Age
- 1y ago

VIOPDER Mini Theremin Musical Electronic Instrument with Screen Display Gift Easy to Use Black
- Price
- £32.08
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 1y ago
Newest
by launch date
Iegefirm Theremin Musical Electronic Instrument with Screen Display for Boyfriend Music Fans
- Price
- £28.37
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 4mo ago

YUKERMARB Mini Theremin Musical Electronic Instrument Type C Interface Multiple Adjustable Voices Theremin Vintage Musical Module
- Price
- £34.69
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 6mo ago

NbgrvB Theremin Electronic Music Instrument with Colour Screen Display Pitch Indicator Multiple Voice Options Built-In Speaker Type-C Powered Portable
- Price
- £28.97
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 7mo ago

VIOPDER Mini Theremin Musical Electronic Instrument with Screen Display Gift Easy to Use Black
- Price
- £32.08
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 1y ago

Audio Theremin Vintage Music Module with Color Display Electronic Musical Instrument Adjustable 70 Tones for Musicians and Music Lovers
- Price
- £27.16
- Rating
- 4.4/5
- Reviews
- 2
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take 77% of clicks. A locked shelf that new listings rarely crack.
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.
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
However I've found this very difficult - at first I thought it was going to be one of those things I couldn't do
First impression was that it's not as loud or smooth sounding as you think after watching a couple of vids
First impression was that it's not as loud or smooth sounding as you think after watching a couple of vids
playing with any precision is extremely frustrating
Love
Very portable
Great fun once you've learnt how to adjust the settings
As expected
As described and works great
The sound is great
Headphone output is a welcome addition
best sound quality material is durable
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
First impression was that it's not as loud or smooth sounding as you think after watching a couple of vids
Keep looking
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Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Theremin questions
Answered from the same tracked data.









