Twice The Battery Life Of A Typical Analogue Device * Package Includes: Device Batteries Lead Wires 1 Pack Of 4 Electrodes Carrying Case And Users Manual * Dual Channel Device With 3 Modes Of Operations(b N And M) * Pulse Width Pulse Amplitude And Timer Are All Adjustable * It Is Also Equipped With A 30 60 90 Minute Timer And Has A Protective Cover Over The Controls * Nerve Stimulator Is A Device Used To Treat Chronic Pain And Pain Associated With Active Or Post- Traumatic Injury Unresponsive To Other Standard Pain Therapies * 7 Pulses Per Burst 2 Bursts Per Second 100hz Fixed Frequency * Pulse Width Is Automatically Varied In A Cyclic Pattern Over An Interval Of Nominally 4.0 Seconds * Continuous Output With Adjustable Amplitude Pulse Rate Pulse Width * Hcpcs Code : E0720/ E0730 * 1 Year Warranty On The Device