End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
https://123deta.com/document/qo5lxg00-電子書籍アクセシビリティに関する研究音声読上げ機能検討中心.html