The Most Commonly Used Cranial Electrotherapy Stimulation in the U.S. Features:
Frequency: 100 Hz (100 pulses per second)
Power source: 9 V alkaline battery
Wave shape: Modified square wave
Amplitude: Adjustable from 0-1.5 mA (milliamps)
Pulse duration: 2 milliseconds (20% duty cycle)
Current intensity: up to 1 mA (milliamp)