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.
除了調音師傅以外, 還有一種鋼琴技工 -- 鋼琴搬運師傅 http://www.tongtuning.com/wordpress/331