Knowles™ Balanced Armature Drivers

Featuring the latest generation of balanced armature drivers, the HEM series can reach frequencies as high as 40,000Hz — twice the frequency range of other balanced armature IEMs. Each HEM model houses either four (HEM8), three (HEM6), two (HEM4) or one (HEM4) Knowles™ balanced armature drivers in each earbud  designed to produce pure, authentic sound from a compact body.