Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Also, make sure that Bluetooth is enabled on your device and that it’s withn range of the earbuds.
Source: https://www.devicemag.com/connect-echo-buds-to-laptop/