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Hihiccup Bluetooth イヤホン IPX8 LED電池残量 蓋を開けるとペアリング済
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From Hihiccup
This report was last updated 5/16/2021.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: While Amazon.co.jp claims 730 Ratings, we counted 487 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL
Deleted Reviews

FAIL
Rating Trend

FAIL
Unverified Purchases

FAIL
Suspicious Reviewers

FAIL
Overlapping Review History

WARN
Word Count Comparison

WARN
Reviewer Participation

PASS
Reviewer Ease

PASS
Brand Repeats

N/A
Phrase Repetition

N/A
Incentivized Reviews

Most Trusted Reviews
We couldn't find any quality reviews
Least Trusted Reviews
User did not leave written text for this review. [Go to full review]
Sep 21, 2019
0%
TRUST
TRUST
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Unverified Purchaser
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Created on a high volume day
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Overrepresented word count (0 words)
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Critical Reviewer (avg. rating: 2.9)
Analysis Details
Fail
Deleted Reviews

We discovered a total of 41 deleted Reviews for this product, with an average rating of 5. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Fail
Rating Trend

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- 37%
- Created over 21 days
We counted 487 reviews for this product over the span of 476 days, an average of 1.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.
However, we see the following 21 days exceeding this threshold:In total, we found that 182 reviews were created on just 21 days. The reviews on these high volume days have rated this product an average of 4.1 while reviews from other days have rated this product an average of 3.6. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Fail
Unverified Purchases

54 of the 487 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.2 while the verified purchasers have rated this product an average of 3.8. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
Fail
Suspicious Reviewers

One-Hit Wonders
127 of the 487 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 4.0 while the reviewers who have posted more than one review have rated this product an average of 3.7. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Never-Verified Reviewers
33 of the 487 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 4.4 while the reviewers who have written at least one verified purchase review rated this product an average of 3.8. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Fail
Overlapping Review History

Reviewers of this product have ALSO reviewed the following products:
3% also reviewed:
【令和進化版... by
2% also reviewed:
【第2世代 LEDディスプレイ】Bluetooth... by
1% also reviewed:
【進化版 Bluetooth5.0第2世代】 Bluetooth... by Anpoow
1% also reviewed:
... by
1% also reviewed:
【令和最新版 Bluetooth 5.0... by
Does not include products
from the same brand
from the same brand
42 of the 487 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.9 while the reviewers who have a more unique product review history rated this product an average of 3.7. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Warn
Word Count Comparison

Word counts are approximated for Hanzi and Kanji
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- 99%
- Have an overrepresented word count
In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 481 reviews (or 99%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Warn
Reviewer Participation

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- 67%
- From reviewers with an overrepresented participation
We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 324 reviewers (or 67%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass
Reviewer Ease

The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4, while the average ease score for reviewers in this category is 4.2.
4.0 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass
Brand Repeats

Brand Repeaters
6 of the 487 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
N/A
Phrase Repetition

We have not yet completed optimization for this test for Hanzi or Kanji.
N/A
Incentivized Reviews

We have not yet completed optimization for this test for Hanzi or Kanji.