The Doss Soundbox XL Bluetooth speaker — 39 percent off today — delivers booming, distortion-free bass up to 33 feet away from the source and can play for up to 10 straight hours on a charge.

SAVE $40: As of May 21, the DOSS SoundBox Pro+ is on sale for $49.99 at Amazon. That's a 44% saving on the list price. For an affordable Bluetooth speaker that doesn't sacrifice on sound, you can ...