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wl-11

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 97Growth 13Conversion 61Competition 10Returns 96Price range 0Avg price 0Brand share 0Review moat 72Quality gap 62

Market size

Incredible¥4.6M

¥4.6M/yr · 7K searches

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Review moat

Good622.75

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Conversion

Good5.3%

search→purchase rate — share of searches ending in a sale

Growth

Bad-23.3%

90-day search growth — must beat 0% to launch

Competition

Bad88%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Avg price

Bad¥12366.08

avg listing price — sweet spot $15–$100

Price range

Bad¥9403.70–¥23373.00

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon Japan niche tracking, wl-11 is a ¥4.6M/yr Amazon Japan market (7K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan. Verdict: Skip it — 44/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

wl-11 market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
¥6.2M–¥9.3M
units × avg price
Conversion rate
5.3%
Avg BSR
#391
Page quality
0%
Prime
13%
Sponsored
50%
Out of stock
22.1%
Avg brand age
46 months
Avg seller age
138 days

Competition & brand share

The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 flat

Sellers

55

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

88%

Top 20: 100%

Open market

0%

  • アイホン59%
  • ノーブランド品41%
  • Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -23.3% search growth over the last 90 days.
250150Spike '24Holiday '24Spike '25Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jan · busiest ÷ quietest = 1.7×

Top wl-11 search terms

  • wl-115K/yr
  • wl-11 アイホン2K/yr
  • wl-11 ワイヤレステレビドアホン47/yr
All search terms

Top wl-11 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%15%¥696K30%¥1.4M45%¥2.1M60%¥2.8M1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)4 products missing review or click data not plotted

All 8 tracked products in this niche — three views at once, no toggling.

What buyers say about wl-11

What buyers praise and complain about, mined from review topics.

What buyers love

組み立て/インストール28%

“コードレスで設置しやすい”

使用の容易さ14%

“ワイヤレスも簡単”

コストパフォーマンス11%

“お得”

バッテリーの内蔵5%

“耐久性や電池の持ち具合はこれからですが、コードレス親子電感覚で自分で取り付けもできるのはありがたいですね。”

機能全体3%

“充分な機能です。”

デザイン全体3%

“上品なデザイン”

セキュリティ3%

“防犯効果大”

持ち運びやすさ3%

“アイホンはキチンとしたメーカーですし、お値段もお手頃で、何より親機を100m以内なら持ち運びできるのが、良いです。”

耐久性3%

“長持ちしますように。”

総合品質2%

“今のところ問題なく使えています”

What buyers complain about

バッテリーの内蔵22%

“電池の減りがはやくなった”

画像/写真の鮮明さ11%

“映像が映らない”

サイズ全体8%

“親機に画面がちょっと小さい”

耐久性5%

“購入から2年3か月で壊れました。”

接続性 - 全体4%

“庭の地下で断線してるようで配線を諦めてこちらにしました。”

機能全体4%

“映像が映らない”

ディスプレイ全体4%

“2年後モニターが映らなくなりました。”

メンテナンスと修理4%

“製造が荒すぎる、ネジ山つぶれていて修理できない。”

範囲3%

“親機と子機は10メートルないのに圏外になる”

カメラの品質3%

“カメラも写りかなり悪い”

Top return reasons

不良材料/部品20%
互換性-全体15%
機能全体13%
範囲13%
接続性 - 全体10%
サイズ全体10%
バッテリーの内蔵5%
組み立て/インストール5%
使用説明書/ユーザーマニュアル/トラブルシューティング3%
充電3%

Common questions

Is wl-11 profitable to sell on Amazon Japan?
The niche generates ¥4.6M/yr across 8 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -23.3%. Flapen's verdict: Skip it (44/100).
How competitive is the wl-11 niche?
2 brands and 55 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in wl-11?
Top complaints mined from reviews: バッテリーの内蔵, 画像/写真の鮮明さ, サイズ全体. The return rate is 0.9%.
When does demand for wl-11 peak?
Demand peaks in Jan; the busiest month runs 1.7× the quietest.
What does it cost to enter the wl-11 niche?
Listings span ¥9403.70–¥23373.00; the average listing price is ¥12366.08 (sweet spot $15–$100). The average incumbent carries 623 reviews — the moat a new listing must climb.