Developer's DescriptionBy SmartWalkiePTT for Zello & VoicePing directly from Lock Screen.Fast Talkie allows Zello PTT Walkie Talkie users to use Push-to-Talk functions on their device with one touch.1) HOW IT WORKS A) ACTIVATE FAST TALKIE - Push Power Button to activate Fast Talkie.B) PTT BUTTON - Hold down the Volume Down button to send PTT message on Zello.C) CHANGE CHANNELS (VoicePing PTT only) - Push the Volume Up button to change channels. 2) SETUPA) Fast Talkie App Settings- FTT Service (Enable) - Draw Over Other Apps (Enable) - Device admin (Enable) - FT Support- Zello (Enable)B) Zello App Settings- Zello PTT ButtonGo to Options > Push-to-talk Buttons > Add Button > Hold the Volume Down button > PTT button SetYou can also use Fast Talkie with other Walkie Talkie Apps such as VoicePing PTT App.For More Information Visit - http://www.fasttalkie.com