There are two new features inside of slack. You can record, which i think is similar to yak - where you can a record your screen. And then the one that's been real i don't know if you've used it yet, is huddle. The huddles on slack, have you used that yet? Wer you just click a button. So in the bottom left of slack there's a button called a huddle, and you click it, and then it turns on your head set. But you don't have to start talking. Your microphone goes off by defaults oreyour just kind of listening.