Listing states that these have not yet been reviewed; I’m guessing this is simply because this is a two pack. However, these earbuds have been reviewed on Amazon.
You can see the [mostly negative] reviews here: https://smile.amazon.com/Jabra-Wireless-Bluetooth-Earbuds-Version/dp/B00KYTS3TM/ref=sr_1_3?keywords=Jabra+Step+Bluetooth+Earbuds&qid=1566307817&s=gateway&sr=8-3#customerReviews