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Amazon.com > Electronics > Headphones, Earbuds & Accessories > Headphones & Earbuds > Earbud Headphones
V5.0 Bluetooth Headphone TDYY Wireless Earbuds IPX4 Waterproof Sport Earphone Automatic Pairing &...
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From TDYY
This report was last updated 12/15/2018.
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Suspicious Reviewers
FAIL Reviewer Ease
WARN Unverified Purchases
WARN Word Count Comparison
WARN Phrase Repetition
WARN Overlapping Review History
WARN Reviewer Participation
PASS Rating Trend
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
We couldn't find any quality reviewsLeast Trusted Reviews
These things are pretty cool. Highly recommend! Best Value as ... [Go to full review]
Dec 14, 2018
0%
TRUST
TRUST
- Unverified Purchaser
- Contains repetitive phrases (show)
- Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
- Overlapping Review History: reviewed 2 of 9 top products
- Easy Grader (avg. rating: 4.9)
Analysis Details
Fail Suspicious Reviewers
Never-Verified Reviewers
289 of the 356 reviewers have never written a verified purchase review. This is an excessively large percentage of Never-Verified Reviewers which may indicate unnatural reviews.
Fail 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 4.9, while the average ease score for reviewers in this category is 4.1. 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.
4.9 Product's Average Ease Score
4.1 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn Unverified Purchases
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- 100%
- Unverified Purchases
356 of the 356 total reviews for this product are unverified purchases. This is an excessively large percentage of unverified purchases and it may indicate 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.
Warn Word Count Comparison
-
- 76%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 270 reviews (or 76%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Reviews:
Show MoreShow Less
3 reviews
(5.0/5)
(5.0/5)
4 reviews
(5.0/5)
(5.0/5)
3 reviews
(5.0/5)
(5.0/5)
3 reviews
(5.0/5)
(5.0/5)
4 reviews
(5.0/5)
(5.0/5)
3 reviews
(5.0/5)
(5.0/5)
3 reviews
(5.0/5)
(5.0/5)
58 of the 356 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Warn Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
73% also reviewed:
YJ Watch Screen Protector 42mm 2 Pack Compatible... by YJan
57% also reviewed:
USB Type C Cable Zotoyi USB-C Nylon Braided Fast... by Zotoyi
48% also reviewed:
Screen Protector Anti-Scratch Tempered Glass... by beegod
45% also reviewed:
Screen Protector Compatible iPhone 7/8... by EthanChristian
44% also reviewed:
Vidgoo Rechargeable Charger Case 4000mah Portable... by Vidgoo
Does not include products
from the same brand
from the same brand
356 of the 356 reviewers have substantial overlapping product review history. This is an excessively large percentage which may indicate unnatural reviews.
Warn Reviewer Participation
-
- 35%
- 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 123 reviewers (or 35%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
Pass Rating Trend
-
- 0%
- Created on high-volume days
We counted 356 reviews for this product over the span of 2 days, an average of 178.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 215 or fewer reviews on any given day. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Brand Repeats
Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
Pass Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
-
- 0%
- Admitted to receiving an incentive
We didn't detect any reviews that used language indicating they were incentivized.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Pass Deleted Reviews
- 0
- Reviews have been deleted
We have not discovered any deleted reviews for this product.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
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.