86-0755-84828811
B307, Buxin Qingcheng Shidai, Luohu Dist., Shenzhen, Guangdong, China (Mainland)
SIM800L GPRS GSM Module MicroSIM Card Core Board Quad-band TTL Serial Port, US $ 2 - 6 / Piece, SIM800L MicroSIM Card, SIMCOM, Guangdong, China.Source from Shenzhen Gaoyu Technology Co., Ltd. on Waimaotong.com.