Harman Kardon teases the Invoke speaker, a Cortana-powered Echo competitor

Harman Kardon’s Invoke speaker, the Microsoft Cortana-powered answer to the Google Home and Amazon Echo, will ship this fall according to a preview page with the first official images of the tabletop device.Though pricing hasn’t yet been revealed, Harman Kardon said that the Invoke will perform three major tasks: make and receive calls with Skype, control popular music services like Microsoft Groove, and “get things done” with Cortana, Microsoft’s digital assistant.