This document describes an Android-based self-service solution that provides a low-cost way for businesses to accept both cash and electronic payments through standalone kiosks or point-of-sale systems. The solution includes an Android SST app, e-wallet app, transaction switch for authorization and processing, and optional devices like cash acceptors and printers. It supports payment methods like Google Wallet, PayPal, and Liteda e-Wallet using near-field communication technology. More information can be found by contacting the company at the provided email.