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Our company specializes in OEM/ODM custom processing services for Bluetooth speakers, microphones, headphones, and other electronic products. Regular in-stock products are produced and configured according to export standards, with default shipment being the export version. Due to differences in requirements such as product certification, labeling, and technical parameters between domestic and foreign markets, if you have specific needs for domestic standards, please contact customer service before purchasing to confirm. We will do our best to accommodate adjustments. Due to the numerous issues related to product version differences, we cannot proactively inform you about each one. Please communicate in advance. Thank you for your understanding and support!