Is There a Plus and a Minus on the Sonos?

One of my knit picks is the icons for volume up and volume down are just nn a square bristol. I could have done the plus the minus, and it totally fits with that little symbol. They also just introduced, i forget what they call it, sono's voice control, or whatever it is. That is, aso, quite the mystery. M i will note, since you brought up, being able to advance a track or go back without taking off, taking out your phone would be a nice thing to do.