Bose QuietComfort headphones are on sale for a record low $199 for Prime Day

The Prime Day deals are still rolling in, and here's some good ones for the audiophiles. Bose QuietComfort headphones are available for a record-low price of $199. That's more than 40 percent off the usual list price for one of our favorite picks for a noise-canceling Bluetooth headset. Bose has a reputation for excellent audio tech and the QuietComfort line has adjustable EQ so you can tailor the sound balance to your tastes. The wireless headset promises "all day battery life," but you can als...