Zello PTT Walkie-Talkie is a free app that turns your mobile device into a walkie talkie. If you have fond memories of playing around with walkie talkies as a kid, then you will love this app. Zello PTT Walkie-Talkie offers high quality sound and real-time streaming, along with public and private channels with space for up to 2500 users. It supports Bluetooth headsets and Android Wear, and offers you voice history, call alerts and other features. You can even share images with your friends!
