Hello, friend .Nice to meet you. As you can see, We are a direct Trading Company of China's top factories. We can produce 100000pcs per day of these earphones .We have most professional factory ,with best products ,best packagingdeparment ,best price for the best quality .If you are worry about our quality .you can ask for samples to test first .We provide diversified customization,including different effective serial numbers, personalized code spraying,perfectpackaging,etc... We can same day shipping . Thanks for your trust !!!!! wish u all business wonderful .
About shipping method：
American warehouse serves American customers: USPS Express, 2-4 days delivery!
Economy Parcels (Electronics): Alibaba Official Logistics(packaging without logo), delivered in 6-15 working days.
Seller's shipping method 1:PostNL, delivered in 5-15 working days.
Seller's shipping method 2: UPS /DHL/ FedEx ,delivered in 3-8 working days.