EQ73XL by AKM Semiconductor, Inc Design and production,in Shenzhen HYLX Technology Ltd. Spot sales,And can pass Shenzhen HYLX Technology Ltd. Purchasing。EQ73XL Price reference $ 1.015000。EQ73XL - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information EQ73XL Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial