Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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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: ["Limitation of liability", "Unilateral termination", "None", "Arbitration", "Content removal", "Unilateral change", "Choice of law", "Contract by using", "Jurisdiction"].