The Shopify POS Go Handheld Portable Card Reader Barcode Scanner S2001 is a wireless credit card reader and writer designed by Shopify for businesses in the retail and services sector. This handheld device allows for easy and convenient scanning of credit cards and barcodes, making it an essential tool for point of sale transactions. With its portable design and reliable connectivity, the Shopify POS Go is a versatile and efficient solution for businesses looking to streamline their payment processing system.