Right now, you can get a well-reviewed pair of Bluetooth headphones for $30. These normally go for $80, so it's quite the discount!
Bluedio T3 ($29.99, 63% Off) [UK]
For today only, you can snag this pair of headphones for a super low price. These have been quite well-received from Amazon reviewers, with scores coming in between 4 and 4.5-stars, depending on the color. Of course, even at their full price, they aren't going to beat headphones that cost over $200, but they do seem to be quite solid. Basically, if you're looking for a pair that offers good sound and durability, and don't want to break the bank, these could be a good option, provided you go in with the right expectations.
As an added bonus, they come in four different colors -- red, gold, black, and white!