Check the listing for details. Harman Kardon Invoke Smart Bluetooth Speaker, Graphite. Color: Black, Condition: New. Listed at 50.99 USD. Please read before placing an order:Microsoft recently ended the support for Cortana. Please read the announcement for details:https://support.microsoft.com/en-us/topic/cortana-service-on-the-harman-kardon-invoke-78341f15-082f-b732-d91b-440b8366f2b4The setup of this speaker may not be easy for everybody. It does not simply connect to your computer or other electronic devices as straightforward as an ordinary bluetooth speaker. If you are not confident that you are able to set it up please do not order. No return of this speaker will be accepted except for hardware problems. TECH SPECS Weight2.3lbs (1kg)DriversWoofer: 1.75” (45mm) x 3Dome tweeter: 0.5” (13mm) x 3SoundRated power: 40WFrequency response: 60-20kHz (-6dB)ConnectivityBluetooth 4.1Wireless network: 802.11b/g/n/as (2.4GHz/5GHz)Supported audio formatsAAC, MP3, Vorbis, FLAC, WMA, WAV