Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you may not connect to the fitbit service with any device that is not manufactured , distributed , or sold by fitbit itself or through its authorized resellers or agents ( such as a knock off or counterfeit version of a fitbit device ) ; otherwise intends to resemble or purports to be a fitbit device ; or any unauthorized application or third-party connection . 

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