886-6-3127675
10/F-4, No. 12, Zhonghua Rd., Taiwan
GSM audio intercom for multiple residents apartment 3G door phone gate opener controller relay switch via SMS or free call, US $ 1 - 2 / Unit, Taiwan, China, Gainwise, SS91BV-M, SS91BV-M.Source from GAINWISE TECHNOLOGY CO., LTD. on Waimaotong.com.