Before revision:  We present a complete wireless neural stimulation system consisting of a 2.2 mm^3 wireless, batteryless, leadless implantable stimulator (the "mote"), an ultrasonic wireless link for power and bi-directional communication, and a hand-held external transceiver.
After revision:  We present a complete wireless neural stimulation system consisting of a 1.7 mm^3 wireless, batteryless, leadless implantable stimulator (the "mote"), an ultrasonic wireless link for power and bi-directional communication, and a hand-held external transceiver.