The Sentra 199 is a 3G / WiFi Android Radio, without display, for basic operation. You can install apps from your computer to the radio via the USB port. Radio comes with Sentra PTT built-in with push to talk button and channel selector. The device offers traditional walkie talkie features without any licence fees to regulator.
Device is automatically trunked and can be access from anywhere, any time. Sentra PTT offers channel selector and PTT button functions along with text to speech notification feature. The device comes with a panic button option. Man down feature is attached with the device which allows dispatcher to get notified if the device has sudden fall from a certain height.