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we are professional china suppiler,we offer : fastshipping within 3 days, vip service, 100%quality testing, always ready for wholesaler. we offer the service for our buyers. please message us before negarive feedback,let's solve the problems together our items are shipped out within 3 business day after your payment has been completed. for dispatching smoothly and fast,we may ship items via other courier,the decision of us is final. in-ear detection function (automatically pause when the earphone is taken out of the ear, and automatically play when the earphone is inserted into the ear).syi