Primary Applications: Ears The Quantum 101 headset is highly effective at improving tinnitus (ringing in the ears). Both clinical and neurophysiological data suggest that chronic tinnitus is characterized by focal brain activation. Pulsed magnetic-field therapy induces changes of the electrical signals in the brain that correlate with a decrease in tinnitus symptoms. *the Quantum 101 – Purewave 101 PEMF Headphone applicator is an accessory device. This product can only be used with the main Quantum 101 – Purewave 101 controller.