A transcutaneous
nerve stimulation system includes a multifunctional earphone
assembly that receives a sound
signal from a sound source or other sources (such as a
signal generator). An
amplifier receiving the sound
signal from the sound source or independent
signal generator amplifies the sound signal to generate an amplified electrical signal. A stimulator, which includes multiple conductive
electrode contacts, is coupled to the
amplifier to receive the amplified electrical signal. The
electrode contacts may protrude from an earbud / headphone or extend from an adjustable probe arm. The amplified electrical signal is used to apply electrical stimulation while the earphone
assembly emits audible sounds according to the sound signal. The combined functionality enhances compliance with treatment regimens involving electrical stimulation of vagus nerves and other regions of a subject. Potential indications include, without limitation,
major depressive disorder,
epilepsy,
chronic pain, pre-diabetes,
insomnia, cardiovascular disorders,
tinnitus,
autism, daily stress, and
anxiety.