Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
background communication with other user devices may happen depending on the application you use . 

```
. OPTIONS: ['Contract by using' 'Limitation of liability' 'Choice of law'
 'Unilateral termination' 'Arbitration' 'Jurisdiction' 'Unilateral change'
 'None' 'Content removal'].