Audio-2d-Code is a new technology to share links using sound which can replace 2Dcode, NFC and Bluetooth in many occasions. By the means of sound broadcasting, the effective range can reach up to 3 meters. The SDK was designed for extension into many use-cases just like file transmission, tickets, broadcasting and other related fields. Now it supports iOS, Android, Windows Phone 8 and server development. The client SDK supports multiple platforms. For more information, please refer to the Getting Started page.