86-574-63268377, 63265968
No. 180, Xizhu Yanshan Highway, Qinyan Village, Henghe Town, Cixi, Ningbo, Zhejiang, China (Mainland)
9V Battery double dingdong wireless doorbell 50M for free, US $ 2.9 - 3 / Piece, Zhejiang, China, B One, BH2017.Source from Ningbo Baihuang Electric Appliances Co., Ltd. on Waimaotong.com.