Simka company is the top 3 supplier of mobile phone in China with over 10 years of experience. Our business philosophy is "Quality Control" and "Customer Satisfaction". We always put the quality in the first place, and we have very strict QC systems to make sure every single unit of device is 100% in good quality. All our devices would be fully tested and functional before shipment.And we always listen to our customers and have been trying our best to provide better services.