TaoTronics 21" Sound Bar | $59 | Amazon | Promo code KINJASM9

This inexpensive, compact sound bar probably isn’t ideal for your main home theater—it’s only two channels, and doesn’t have a subwoofer—but it would be a massive upgrade for, say, a kitchen or bedroom where you’re still using your TV’s built-in speakers. It’s also wall-mountable, and will also work as a big, loud Bluetooth speaker for your phone.