The FYLM Foldable Speaker uses ultrathin electrostatic loudspeaker technology to create a startlingly flat unit that folds open for use, secured with a magnetic latch.  The film itself is less than 0.25 millimeters thick—pretty thin. There are no batteries involved, power comes from any music player or smartphone jacked in via standard 3.5 mm headphone jack. We are anxiously awaiting our MR Lab test unit, because we’re curious about how bass response has been handled! Meanwhile, FYLM is available in Orange, Black, Grey, or Yellow, with matching cable. Fold it flat and go!