Turn your phone or tablet into a walkie talkie with this lightning fast free PTT (Push To Talk) radio app. Talk to your contacts privately or join public channels to engage in a hot debate.
Real-time streaming, high quality voice
Contacts availability and text status
Public and private channels for up to 2500 users
Option to map hardware PTT (Push To Talk) button
Bluetooth headset support (selected phones)
Android Wear support
Works over WiFi, 2G, 3G, or 4G mobile data
Zello uses proprietary low-latency push-to-talk protocol and is not interoperable with Voxer, Sprint Direct Connect or AT&T Enhanced PTT. Zello Android client supports free public service, ZelloWork cloud service, and private Zello Enterprise Server.