OVERVIEW: The AINA PTT Smart Button is used to enable safe and discrete PTT communications via smartphones and tablets. It works with and is compatible with all leading PTT APPs sold by AT&T and iOS/Android Smartphones and Tablets. KEY FEATURES: Push to talk button one Push to talk button two Emergency button 6-month battery life Bluetooth low energy, single pairing Audio–Via wireless ear buds with mic, or AINA ASURV2 surveillance kit earpiece via 3.5 mm jack on phone or AINA Voice responder