1. These earbuds are very likely still associated with the previous owner's AppleID, which may means you will not be able to use extra features such as the 'Find My' app.  

2. This item is best suited for those who do not use iPhones, OR do not care about the AppleID ecosystem.

3. iPhones will sometimes misidentify the earbud generation until the AirPod reset process is completed, after which the phone will show the correct generation. 

 a) How to Reset AirPods: https://support.apple.com/en-us/118531

 b) For more information see https://therightone.com/blogs/help-resources/mismatched-airpods-what-does-it-mean

4. How to & Sync Replacement Earbud:

https://support.apple.com/en-us/102520

5. Airpods Do Not Sync to your device with the Replacement Earbud:

 a) This can sometime occur if earbuds have firmware versions that are too far apart. 

 b) Check the link below for instructions on updating airpods firmware.

 c) https://support.apple.com/en-us/106340

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Inventory # MQ-UP2

Photos depict a sample item (multi-quantity listing).