Check the listing for details. Harman Kardon Invoke Smart Speaker Black Cortana Wireless Bluetooth Wi-Fi. Color: Black, Condition: Used. Listed at 30.00 USD. The Harman Kardon Invoke Smart Speaker in black is a sleek and powerful wireless speaker that combines the convenience of voice search with the advanced connectivity of Bluetooth and Wi-Fi. With its cylindrical shape and durable metal construction, this smart speaker not only delivers great sound quality but also provides seamless integration into your smart home ecosystem using Cortana technology. Whether you're streaming music, accessing weather information, or controlling your smart home devices, the Harman Kardon Invoke Smart Speaker is a versatile and reliable option for modern living. P.S. charger is missing but it does work from last time I used it. Please keep in mind before purchasing. Thank you!