This is a description of how the Wear Speaker app uses your Android permissions it requests.
This is used to identify a user who may purchase an in app product. A purchase is linked to your Google account. This is the only reason why this is used and is used for no other purpose.
Contacts are used to allow calling from the watch when scrolling through a contact to call. Contacts are not used for any other purpose other than viewing your contacts on your wearable device and selecting that contact to call. Contacts are not shared with Wear Speaker or any other 3rd party company.
The Phone permission is only used when a contact has been selected via the wearable device in order to make a call. The phone permission is not used for any other purpose.
Device ID & call information
This is only used to represent call history on the wearable device, so as to allow you the user to scroll through your call log via the wearable device in order to make a quick call. This is used for no other reason.