The enumeration describes the different types of Bluetooth LE generic attributes (GATT).
The characteristic value has additional properties that describe how it can be used, or how it can be accessed.
The characteristic value contains a string that is a user textual description.
The characteristic value may be configured by the client.
The characteristic value may be configured for the server.
The format of the characteristic value.
The format of an aggregated characteristic value.
The characteristic value is customized.