48
2.5mm to 3.5mm adapter
Skip itPrices mostly outside the sweet spot ($4.53–$15.25) — this niche doesn't clear our bar today.
Conversion
Great9.9%search→purchase rate — share of searches ending in a sale
Brand share
Great53%top-5 brand share — no brand owns this niche
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Good596.83avg incumbent reviews — the moat a new listing must climb
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Returns
Okay4.2%return rate — above 5% kills the launch gate
Growth
Bad-7.2%90-day search growth — must beat 0% to launch
Avg price
Bad$7.20avg listing price — sweet spot $15–$100
Market size
Bad$58K$58K/yr · 82K searches
Price range
Bad$4.53–$15.25cheapest to priciest tracked listing — scored on the share inside $15–$100
Signals No Dominant Brand