---
title: "Crystal Radio Kit — $48K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/crystal-radio-kit"
last_updated: "2026-08-08T22:45:08.426Z"
locale: en
meta:
description: "Niche score 56/100 · $48K/yr market · 72K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · $48K/yr market · 72K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Crystal Radio Kit — $48K/yr Amazon US Niche (2026) - Flapen"
---
# **crystal radio kit**
**Worth a look**
Shows a sweet-spot price point ($26.23 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 12Growth 16Conversion 31Competition 75Returns 83Price range 63Avg price 95Brand share 83Review moat 88Quality gap 88
**Avg price**
**Incredible****$26.23**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****239.23**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Great****52%**
top-5 brand share — no brand owns this niche
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Competition**
**Good****40%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Good****$6.35–$140.93**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Okay****2.5%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-18.4%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$48K**
$48K/yr · 72K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, crystal radio kit is a $48K/yr Amazon United States market (72K searches/yr). The top 5 brands hold 52% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 56/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **crystal radio kit market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$52K–$66K**
- units × avg price
- **Conversion rate**
- **2.5%**
- **Avg BSR**
- **#997**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **90%**
- **Out of stock**
- **2.7%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **184 days**
## **Competition & brand share**
The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**24 **▼falling
**Sellers**
**33**
**Top-5 brand share**
**52%**
Top 20: 97%
**Top-5 click share**
**40%**
Top 20: 83%
**Open market**
**41%**
- IS13% - CYOEST11% - choopheme9% - Elenco9% - diymore9% - Nautydaddy7%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -18.4% search growth over the last 90 days.
5K4KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/crystal-radio-kit/trend)
## **Top crystal radio kit search terms**
- **radio kits to build**16K/yr-10.9%1.5% conv. - **diy radio kit**11K/yr-10.1%2.4% conv. - **fm radio kit**12K/yr-37.1%2.3% conv. - **diy radio**6K/yr-11.4%1.4% conv. - **build a radio kit**5K/yr-9.4%3.5% conv. - **radio building kit**4K/yr-0.2%3.4% conv. - **build your own radio kit**5K/yr+2.9%3.3% conv. - **radio kits**3K/yr-3.9%1.2% conv. - **build your own radio**5K/yr-50.1%4.7% conv. - **build a radio**4K/yr-50.0%2.2% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/crystal-radio-kit/search-terms)
## **Top crystal radio kit products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%$1K6%$3K9%$4K12%$6K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Science Kits for Kids Age 8-12 12-14 STEM Kits for Kids Age 8-10 STEM Toys Build Your Own FM Radio Kit DIY Electronic Snap Circuits Projects Gifts for Teen Girls Boys 9 11 13 15 16+ (Classic Wood)**CYOEST**$9.37**4.5★1,314 rev](https://www.amazon.com/dp/B0CR1P4XJY) [2**Stem Projects Toys for Boys age 8-12 12-14 Science Kit Building Own Bluetooth Speaker & FM Radio DIY Electronics Kit Science Experiments Kid 9-12 Boy Toys Birthday Gift 8 9 10 11 13 Year Old Teen Girl**choopheme**$19.07**4.4★430 rev](https://www.amazon.com/dp/B0D8B3R2L2) [3**NautyDaddy FM Radio Kit STEM Toys for Ages 8-13 DIY Wooden 3D Puzzle to Build a Working FM Radio Educational Science Kit for Kids 8-12+ 88-108 MHz**Nautydaddy**$22.48**4.3★93 rev](https://www.amazon.com/dp/B0DB5R4N2C) [4**Diymore DIY FM Radio Kit Soldering Practice Electronics Project Transparent Case with PCB Speaker Digital Display for Beginners & STEM Learning**diymore**$15.55**4.0★6 rev](https://www.amazon.com/dp/B0GSDVL8PK) [5**FM Radio Kit ICSTATION Soldering Projects Radio with LED Flashing Lights DIY Radio Kit LCD1602 Display FM 87-108MHz Soldering Practice Kit for Back to School Solder Education Creative Present**IS**$28.61**4.2★362 rev](https://www.amazon.com/dp/B09Y1BJZ6F)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Diymore DIY FM Radio Kit Soldering Practice Electronics Project Transparent Case with PCB Speaker Digital Display for Beginners & STEM Learning**diymore**$15.55**6 rev3mo ago](https://www.amazon.com/dp/B0GSDVL8PK) [**diymore DIY Bluetooth Speaker Kit USB Mini Stereo Amplifier Soldering Kit Radio Soldering Practice Kit Remote Control for TF/AUX/Bluetooth/USB Support for Home and School Education Gifts**diymore**$17.70**4 rev3mo ago](https://www.amazon.com/dp/B0GSF13HL3) [**LUMINZENLUX DIY FM Radio Soldering Practice Kit 87-108MHz with 2 Power Modes (USB/Battery) & Acrylic Case STEM Project for Beginners & School Education Complete Kit with PCB Components Speaker**LUMINZENLUX**$28.82**10 rev4mo ago](https://www.amazon.com/dp/B0GSZQP297) [**PANTASY Retro Radio Building Set with Light and Moving Tuning Knob**PANTASY**$61.78**40 rev5mo ago](https://www.amazon.com/dp/B0GN1TDQ86) [**GeekLJT Upgraded RDA5807 Radio Soldering Kit DIY Solder Project Portable Radio DIY Electronic Kits Practice Soldering Kit for Learning and Teaching Solder and Electronic**GeekLJT**$18.49**36 rev1y ago](https://www.amazon.com/dp/B0F8QCC83T)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Diymore DIY FM Radio Kit Soldering Practice Electronics Project Transparent Case with PCB Speaker Digital Display for Beginners & STEM Learning**diymore**$15.55**4.0★**▲ 429%**](https://www.amazon.com/dp/B0GSDVL8PK) [**LUMINZENLUX DIY FM Radio Soldering Practice Kit 87-108MHz with 2 Power Modes (USB/Battery) & Acrylic Case STEM Project for Beginners & School Education Complete Kit with PCB Components Speaker**LUMINZENLUX**$28.82**4.5★**▲ 424%**](https://www.amazon.com/dp/B0GSZQP297) [**diymore DIY Bluetooth Speaker Kit USB Mini Stereo Amplifier Soldering Kit Radio Soldering Practice Kit Remote Control for TF/AUX/Bluetooth/USB Support for Home and School Education Gifts**diymore**$17.70**2.6★**▲ 420%**](https://www.amazon.com/dp/B0GSF13HL3) [**PANTASY Retro Radio Building Set with Light and Moving Tuning Knob**PANTASY**$61.78**4.8★**▲ 419%**](https://www.amazon.com/dp/B0GN1TDQ86) [**NautyDaddy FM Radio Kit STEM Toys for Ages 8-13 DIY Wooden 3D Puzzle to Build a Working FM Radio Educational Science Kit for Kids 8-12+ 88-108 MHz**Nautydaddy**$22.48**4.3★**▲ 49%**](https://www.amazon.com/dp/B0DB5R4N2C)
**~~View all trending →~~**
## **What buyers say about crystal radio kit**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**15%
*“Easy enough to assemble”*
**Fun/Entertainment Experience**15%
*“Fun to put together”*
**Quality-Overall**8%
*“This is a good-quality kit”*
**Gifting Purpose**7%
*“Very cool gift”*
**Instructions/User Manual/Troubleshooting**6%
*“The instructions were clear”*
**Design-Overall**6%
*“has a unique look”*
**Educational-Overall**5%
*“It is educational”*
**Audio Quality**5%
*“Sound is great”*
**Value For Money**4%
*“Worth it”*
**Ease Of Use**4%
*“Easy and quick”*
### **What buyers complain about **
**Instructions/User Manual/Troubleshooting**14%
*“The instructions aren't great”*
**Functionality-Overall**10%
*“Radio doesnt work”*
**Assembly/Installation**8%
*“hard to assemble”*
**Quality-Overall**7%
*“Cheap quality”*
**Size-Overall**5%
*“Ic chip is way too small”*
**Durability**3%
*“easy to break”*
**Noise Level**2%
*“it only makes a buzzing sound”*
**Value For Money**2%
*“Not worth the price”*
**Strength**2%
*“Not super sturdy”*
**Audio Quality**2%
*“I still cannot get any sound out of any speaker I connect to it”*
### **Top return reasons **
**Functionality-Overall**17%
**Defective Material/Parts**17%
**Size-Overall**16%
**Advertised Vs Actual Product**7%
**Gifting Purpose**5%
**Assembly/Installation**5%
**Instructions/User Manual/Troubleshooting**5%
**Value For Money**4%
**Battery Inclusion**3%
**Quality-Overall**3%
## **Common questions**
- **Is crystal radio kit profitable to sell on Amazon United States?**
- The niche generates $48K/yr across 40 tracked products. 1 of 8 products launched in the last 360 days are still selling. 90-day search growth is -18.4%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the crystal radio kit niche?**
- 24 brands and 33 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 52% of demand.
- **What do buyers complain about in crystal radio kit?**
- Top complaints mined from reviews: Instructions/User Manual/Troubleshooting, Functionality-Overall, Assembly/Installation. The return rate is 1.6%.
- **When does demand for crystal radio kit peak?**
- Demand peaks in Nov–Dec; the busiest month runs 3.1× the quietest.
- **What does it cost to enter the crystal radio kit niche?**
- Listings span $6.35–$140.93; the average listing price is $26.23 (sweet spot $15–$100). The average incumbent carries 239 reviews — the moat a new listing must climb.
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