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AINA's Push-to-Talk (PTT) Bluetooth Smart Button remotely controls your smartphone's PTT and other application features. The PTT Smart Button was purpose built for critical communications, with two large PTT/Programmable buttons and dedicated SOS/Emergency control. When connected to a PTT application, the PTT Smart Button functions as a remote PTT button to send messages to a contact or group, allowing users to keep their handsets in their pocket. The second programmable key may be used as a secondary PTT button, for contact scrolling or repeating messages.