HiNative app關於「Speaky ptt」標籤，搜尋引擎有相關的訊息討論：
Zello PTT Walkie Talkie – Apps on Google Play評分 3.9 (776,475) · 免費 · AndroidTurn 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 ...【問題】HiNative PTT | 蘋果健康咬一口語言交換學習app →hin