With a size of an astonishing (L)19 x (W)7.5 x (H)7.4 mm the q-JAYS Dual Micro Armatures Sound Isolating Earphones are the smallest earphones on the market. Despite this it fits dual micro armatures and an AirBooster that deepens the bass and listening experience. The sound will blow you away. If you thought you had heard it all – think again.