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qdc (Shenzhen Qili Audio Application Co., Ltd.) was established in 2015 by parent company Shenzhen Qili Industrial Co., Ltd., which was founded in 2005 with registered capital of 23 million yuan. Located at 7/F, Nanhang Building, 7 Langshan Road, Hi-Tech Industrial Park (North), Nanshan District, Shenzhen, China, qdc is an innovative high-tech company building upon over 10 years of research technology in police and military communication devices. The company is dedicated to developing high-end customized in-ear balanced armature monitors and is the biggest CIEM (Custom In-Ear Monitor) player in the Chinese market, supplying popular music and TV stars with their in-ears. qdc offers various product lines including Studio series (for recording engineers), HiFi series (for audiophiles), Live series, and both custom and universal fit IEMs.