Dripp Dropp, The Most Affordable Qualcomm TWS Earbuds

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what is CVC noise reduction? how is it work is it a active oder passive system? which Qualcomm chip installed? there have from simple to high performance chips :/ do you have any specification for: BT-standart? Audioformat? Audiodelay? weights? runtime? size? Chargings? promiice a lot but no values :((