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About Sound Intone

COOSII Technology is devoted aiming to benefit more and more customers from our high quality products with reasonable price and great services, our brands “Sound Intone”and”AILIHEN”were registered and patented in January 2012. We have been providing a variety of products totaling exceeding 200 different types of headphones invented by a group of highly motivated technical engineers and staffs as a tight team with over 20 years of experience and ultimate goal of persistent pursuit and innovation.

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