Shenzhen Pengfei Electronics Co., Ltd
Address: 108 Bldg.CheGongMiao Industry Zone,FuTian,ShenZhen,China.
Tel: (86 755) 83426797 83676797 83676796 83584897
Hotline:086-13798328932
Fax: (86 755) 83676755 83585955
Email: sales@buzzerchina.com 
Web site:http://www.buzzerchina.com