Hello, DingTalk chatting is designed for work communication：

1. [Concentrate Working] No Moments and Games etc., only focusing on work, more concentrate;

2. [High Efficiency Communication] Message state (read/unread) can be track straight away. Unread messages can transfer to free call reminder now on tap;

3. [Safety Communication] When an employee leaves, he will be removed from the group chat directly;

4. [Interesting and Warm] Can encourage staff by sending "Like" and "exclusive red packet".