Package Includes: Device batteries lead wires 1 pack of 4 electrodes carrying case and users manual * The Ustim offers 12 different modes which allows it to treat a wide spectrum of injuries * Belt clip * Indications: Muscle soreness Muscle stiffness Arthritis Body pain Post-op pain Post-traumatic acute pain and Chronic pain * EMS Stimulator U Stim With 12 Modes is a dual channel device for muscle exercise and treatment of physical injury * This electrotherapy equipment has 12 modes of operation that are user friendly and written in practical terms * The neuromuscular stimulator has two wave forms and a large LCD screen * The interferential unit is by far one of the best portable EMS unit on the market * A prescription from your physician or physical therapist is required for this device * SPECIFICATIONS: * Model : Ustim * Channel : Dual * Output : Maximum 120mA (peak value) across 500 Ohm load * Pulse Width : From 50microsecond to 400microsecond in steps of 50microsecond * Pulse rate : From 1 Hz to 150Hz Adjustable * Waveform : Symmetrical bi-phasic rectangular:::Alternately bi-phasic rectangular * Program : 21 programs are available * 5-year Warranty.