Case study · Amazon seller

Bubble Mic: a new launch from 100.58% ACoS to 37.49%

A new product in a crowded electronics category, priced above average, with 6 reviews and no way back into Vine. We rebuilt the listing and ran lean, tightly controlled ads.

  • Amazon PPC
  • Listing SEO
Real account data
Amazon sellerBubble MicNew electronics accessory launch · Amazon US
  • ACoS100.58%37.49%
  • Ad orders656
  • Ad sales$209.79$1,708.29

Results at a glance

20 September to 31 October 2025 (before us) against 1–18 December 2025.

ACoS

37.49%from 100.58%

−63 pts
Ad orders

56from 6

9x
Ad sales

$1,708.29from $209.79

8x
Gross sales a month

$1,318.68from $329.67

Oct → Nov

How to read these numbers

The before period is 42 days and the December period 18 days, so per day the gains are larger than the totals show.

Gross sales are from the client's monthly report: September $89.91, October $329.67, November $1,318.68.

The starting point

Where the account started

  • Ads ran with no structure and spent about as much as they sold.
  • The title, bullets and description lacked keywords, and the backend search terms were empty.
  • Priced above the category average, with only 6 reviews and no Vine re-enrollment.
The work

What we did

Rebuilt the listing

  • Rewrote the title, bullets and description around buyer intent.
  • Filled the backend search terms, and matched the copy to the ad keywords.

Picked winnable keywords

  • Found high-intent keywords that few competitors use in their titles, so a new product could rank.

Lean Sponsored Products

  • Exact and broad match on relevant keywords only, with measured placement boosts.
  • Frequent bid and keyword changes instead of long tests, moving budget to proven terms.
  • Moved keywords the product already ranked for into exact match.

The numbers, period by period

Copied from the account's own reports. Every row matches a screenshot below or the client's report.

PeriodAd spendAd salesAd ordersACoS
20 Sep – 31 Oct 2025 (before us)$211.01$209.796100.58%
November 2025$518.33$1,018.983250.87%
1–18 December 2025$640.47$1,708.295637.49%

The proof: screenshots from the account

Taken from Amazon Seller Central and Amazon Ads. Select any screenshot to see it full size.

Ads, 1–18 December 2025: 56 orders, $1,708.29 sales, 37.49% ACoS
Ads before us, 20 September – 31 October 2025: 6 orders, $209.79 sales, 100.58% ACoS
Ads, November 2025: 32 orders, $1,018.98 sales, 50.87% ACoS
Ads, 1 November – 18 December 2025: 88 orders, $2,727.27 sales, 42.49% ACoS
Sales before us: 49 units, $1,483.83 since launch
Sales report on 18 December 2025: 144 units, $4,285.71 over the period shown

More client results

See all case studies

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  • Search terms and campaigns that spend without selling
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  • The three changes we would make first, with the numbers behind them
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