
We are working hard to improve the app so please expect frequent updates. Zello Android client supports free public service, ZelloWork cloud service, and private Zello Enterprise Server. Works over WiFi, 2G, 3G, or 4G mobile dataZello uses proprietary low-latency push-to-talk protocol and is not interoperable with Voxer, Sprint Direct Connect or AT&T Enhanced PTT.Bluetooth headset support (selected phones)* Android Wear support.Option to map hardware PTT (Push To Talk) button.Public and private channels for up to 1000 users.Real-time streaming, high quality voice.Talk to your contacts privately or join public channels to engage in a hot debate.

Turn your phone or tablet into a walkie talkie with this lightning fast free PTT (Push To Talk) radio app, which works between Android, iPhone, BlackBerry, and PC.
