Is this bluetooth ?

Are those real bluetooth ? I just received one and I have to plug in to my phone in order to connect bluetooth. if it has bluetooth connection, why I have to plug it in to my phone all the time to stay connect? If I have to plug it in to my phone, what is different from regular earphone? As there is no Q & A to ask a question to the seller, i have to put a equation here. To Seller: can you response my question ASAP?

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