How do you control the quality？-Shenzhen Topideal Industrial Co., Ltd,Bluetooth speaker,portable speaker,sports speaker,Bluetooth keyboard,iphone keyboard,tablet keyboard,Car charger , car power charger , car power adapter

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The materials are checked before production. The products are checked by QC before shipment.

Address: Building 161, Fenghuang East Area, Fuyong Town, Baoan District, Shenzhen, China 518102