Shenzhen Tekzone Loudspeaker Co., Ltd.   Add: Building 2,Dequan Rd, Henggang 228 Industrial Park, Longgang District, Shenzhen, 518115 P.R.China     E-mail:info@tekzone-audio.com , jadejiang@tekzone-audio.com       Tel: +86 755 28706545,28700767     Fax: +86 755 28701400