86mm*54mm (imaging size 62mm*46mm) and 88mm* 107mm (imaging size 79mm*79mm), these two specifications. Idol Dream Festival is a love female idol development mobile game developed by music elements, with Tencent as the exclusive agent and cooperation. On March 2, 20 16, the official beta of Android [1] was launched at the Idol Dream Festival; On May 4th of the same year, Idol Dream Festival started the paid file deletion test on Android platform. On May 24th of the same year, 1 1: 00, the Idol Dream Festival started the Android file deletion test. On May 28th of the same year, "Idol Dream Festival" launched the iOS non-deletion test. On July 28th, 20 16, "Idol Dream Festival" officially opened for public beta, and the public beta carnival also opened.