Bluetooth speakers are usually boring, plain-colored boxes, but not this one! As part of Nothing’s early Black Friday promotion, you can get its exclusive milk carton-shaped CMF S speaker at Amazon and Nothing for just $39. That’s a solid $20 off and the lowest price we’ve seen on Nothing’s new wireless speaker, which hit the market about a month ago. The CMF Speaker S is the smaller of the two recently released models (the larger M Series is also on sale at Amazon for $79 ($30 off)) and has a 45mm driver with two passive radiators to help with low frequencies. It can run for up to 18 hours on a single charge and has an IP68 rating for water and dust resistance. Despite its casual aesthetic, it also supports stereo pairing with a second Seris S speaker, Bluetooth 6, fast pairing via multiple methods (including NFC and Google Fast Pair), and audio over USB-C. In addition to their great sound and compact size, both the Speaker S and Speaker M feature removable faceplates and multi-function front knobs. Not only can you swap them out to customize colors, but CMF plans to share STL files so anyone with a 3D printer can create their own attachments and styles.