BB172X by NXP Semiconductors Design and production,in Shenzhen Xinhuantong Technology Co., Ltd. Spot sales,And can pass Shenzhen Xinhuantong Technology Co., Ltd. Purchasing。BB172X Price reference $ 0.470000。BB172X - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information BB172X Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial