| Interface | Description | 
|---|---|
| AuthorizationCallback | |
| ChangeCharacteristicListener | ChangeListener provides callbacks indicating whether Beacon characteristics has changed. | 
| GattController | |
| KontaktDeviceConnection | KontaktDeviceConnection connection allows to establish connection with beacon. | 
| KontaktDeviceConnection.ConnectionListener | |
| KontaktGatewayConnection | |
| OnServiceReadyListener | The listener indicating that Object implementing ServiceConnector interface
 ( ServiceConnector) successfully connected to the corresponding service. | 
| ReadListener<T> | ReadListener provides callbacks indicating whether Beacon characteristics read manipulations ended successfully or failed. | 
| SyncableKontaktDeviceConnection | Syncable Kontakt device connection combines  KontaktDeviceConnectionandKontaktCloudfunctionality. | 
| WriteDescriptorListener | WriteDescriptorListener provides callbacks indicating whether Beacon descriptor manipulation
 ended successfully or failed. | 
| WriteListener | WriteListener provides callbacks indicating whether Beacon characteristics manipulation
 ended successfully or failed. | 
| Class | Description | 
|---|---|
| DeviceConnectionError | KontaktDeviceConnectionpossible errors. | 
| KontaktDeviceConnectionFactory | Factory class used to obtain  KontaktDeviceConnection,SyncableKontaktDeviceConnectioninstances. | 
| KontaktDeviceServiceStore | Acts as a container of characteristics requested before authorization. | 
| WriteListener.WriteResponse | Object representing response from device after writing characteristic | 
| Enum | Description | 
|---|---|
| ErrorCause |