PAX's D210 is a compact mobile payment device designed to interact with customers. Supporting Bluetooth, WiFi, GPRS, 3G (WCDMA)or cable connection, the D210 connects to a wide range of existing and new smart devices to keep up with an emerging marketplace. Apple Inc. has given the D210 a special certification called MFi meaning that Apple has tested and approved the D210 to meet the highest performance standards for integration with any iPad or iPhone.