Electro-acupuncture is a modern addition to acupuncture's traditional techniques.  It involves the application of a pulsating electrical current to acupuncture needles as a means of stimulating the acupoints. 

Acupuncture needles are inserted as normal and then electrodes are attached to the needles to provide continued stimulation.  Electro-acupuncture may benefit numerous conditions, including chronic pain management.  It is contra-indicated if you have a pace-maker.