hi Stable If you are interested in barcode readers and QR code readers, please contact us. Our company is a manufacturer of barcode and QR code identification equipment. You need to know the detailed parameters and performance of the product. Please copy the following website to browse. turn on Official website?www.bigwaveo.com company name: Guangzhou Create Electronic Technology Co., Ltd. ?china?company address? Plant Of Whole Floor 2, Bldg. B2, Yinsha Ind. Zone, Guandao Village, Shapu, Xintang Town, Zengcheng Dist., Guangzhou, Guangdong, China (Mainland)Contact email? carl at bigwaveo.com wechat: 15986783300 -Ur0ULvfs --z0whWDnF --PLrnULjf -