We've rounded up a few of the best Amazon deals of the day on Nov. 21. If you missed our picks from Nov. 19 and Nov. 20, be sure to check those out as well. Many of the deals are still live — including a new all-time low on the JBL Flip 6 Bluetooth speaker and the M3 MacBook Air base model with 16GB RAM for only $849.

Now you can get one with a massive $90 discount in the Black Friday sales. The Sonos Era 300 is now just $359 at Amazon, the lowest price the speaker has ever been.

Our Sonos Era 300 review began with the phrase “prepare for glory” because that’s how large of a leap it was for anyone interested in surround sound music. We’ll get into some of its fancier features,