DOV-E has created a full-blown communication protocol over sound waves, which takes care of correct and fast delivery of information. DOV-E's 2 flavored technology provides both short range (NFC-like) connectivity, as well as long range (iBeacon/Bluetooth-like) connectivity. The protocol also enables full-duplex (both ways) communication, which means that the mobile phone can send and receive information at the same time. The DOV-E software is provided as an easy to embed Mobile SDK, for iOS and Android (with more to come). For devices such as vending machines and POS, they provide a POS SDK (Linux, Windows and more to come). The DOV-E software can also run in any web browser, as old as Internet Explorer 8 or newer, using their Web SDK.