Seems to be retailing between $349 - $399 though Microsoft had it for $299 during their recent 20% off ebay sale. Already 115 sold so appears to be a very popular and good price.
Don't forget the 1% cashback through Cashrewards or Shopback.
The Bose Solo 5 TV sound system is a one-piece soundbar that brings noticeably better sound to all your favorite TV programs. It’s engineered to help clearly reproduce everything from dialogue to details. And for even more clarity, its dialogue mode makes every word easier to hear. This soundbar is so versatile you can place it almost anywhere. And with Bluetooth® connectivity, you can play your favorite music wirelessly through the speaker, too.
Product Features
One-piece soundbar delivers noticeably better sound than your TV alone
Dialogue mode to hear each word and detail clearly
Bluetooth technology built in for streaming music wirelessly from your phone or tablet
One connection to your TV
Universal remote controls TV, bass, Bluetooth connections and more
I normally advocate Bose but I bought this for the bedroom and was so disappointed in it I sold it the next day. Ended up with a Samsung One Body Soundbar that mounts below the TV, literally like chalk and cheese soundwise.