A Guide To OnePlus Buds Z APP (OnePlus Buds)
In order to view information, update or modify actions in the OnePlus Buds Z, if you have a OnePlus 6 or any OnePlus phone launched after it, there is a specially created application, called OnePlus Buds, which is available for Android devices. When connecting to the respective earbuds, many things can be done; Not only will you be able to see the battery of the earbuds and the charging case, but you also have the option of “Find Device” in case the earbuds are lost, as well as change the controls of the earbuds, update the firmware and descriptions of the operation of these.
Source : thephonetalks.com