Check the listing for details. Harman Kardon Invoke Smart Bluetooth Speaker Graphite. Color: Gray, Condition: Used. Listed at 40.00 USD. Congratulations on purchasing your Harman Kardon Invoke with Cortana! For over 50 years, Harman Kardon has led innovation that enhances our customers’ audio experiences—a tradition we continue to uphold with the Invoke. In partnership with Microsoft, we are proud to bring this new experience with Cortana into your home. Cortana® is your very own personal digital assistant. She’s always learning, so the more you ask her to do, the better she’ll be able to help you with the things that matter most. Whenever you need something, just say, “Hey Cortana,” and then ask your question. The top of the device will light up to indicate that Cortana heard you. Some of the things Cortana can help you with: Playing your music, using the service you prefer Calling friends, family, and local businesses Answering questions that come to mind Helping you stay on track by managing your calendar, shopping lists, and reminders Lightening the mood with facts, jokes, chit chat, and games For a full list of everything Cortana can do, check the Cortana app on your phone or PC, or go to the Cortana skills website: microsoft.com/en-us/windows/cortana/cortana-skills/