More than 200 million micro-businesses (e.g. flea market vendors, sole traders, etc.) worldwide are under served by the entire financial chain. Sling aims to democratize technology for these base-of-the-pyramid merchants, enabling them to finally adopt advanced payment methods, unlock analytics, and leverage loyalty channels. With Sling, merchants are geared with payment-enabled tangibles called Slings, including payment bracelets, labels, and tags. Slings non-hardware tangible elements serve both as a roving POS (at no cost) and as an access key to a variety of unique fintech capacities called Pebbles.