Note: Class Ii - Rx Required * With The Powerful Rechargeable Lithium Ion Battery This Portable Device Can Be Used At Home At Work Or On The Go. * The Intensity Select Combo Ii Is The Newest Standard In Portable Multifunction Electrotherapy Offering Patients Four (4) Modalities In One User-friendly Ergonomic Design - Transcutaneous Electrical Nerve Stimulation (tens) Neuromuscular Electrical Stimulation (nmes) Interferential Stimulation (if) And Russian (russ). The Wide-ranging Capability Of The Intensity Select Combo Ii Provides The Most Up-to-date Treatment Technology And Waveforms. * Equipped With Pre-set Body Part Specific Settings As Well As A Customizable Option It Intuitively Guides The Patient Step-by-step To Ensure The Ideal Therapeutic Treatment Throughout The Healing Cycle. * This Powerful Device Delivers Up To 10 000 Hz Of If Therapy With Sweep Frequency Capabilities To Prevent Accommodation While Providing Maximum Treatment Benefits. * Simply Choose A Preset Program By Body Part Or Customize A Program To Meet Your Specific Therapy Needs. * The Russian Setting Provides 2500hz For A Deeper And More Comfortable Stimulation Helping To Reduce Muscle Spasms As Well As Muscle Strengthening. * Contraction And Relaxation Times Are Adjustable. *