In today’s iLounge Deal, we’re offering the durable MIGHTY speaker for only $35—that’s over 50% off the normal price. MIGHTY is a waterproof and sand proof Bluetooth speaker that even floats, so you can use it just about anywhere without worrying about whether it can survive your outdoor activity of choice. The minimal speaker provides booming, clear sound and includes a built-in speakerphone so you can even make and answer…