Twin Stim TENS and EMS Combo 3M Littmann WA Steths * Non constricting comfort band keeps 14804 * Non constricting comfort band keeps socks up without binding or pinching Provides pain relief and compression for muscle injuries lower back dysfunctions injuries to the lumbar discs & the sacroiliac joint * Two internal stays provide additional support The Twin Stim which gives the user the choice of five Modes of TENS and two Modes of EMS * Features include dual channels seven modes timer patient compliance meter new stronger 100 mA output safety amplitude cover sturdy metal belt clip and rubber side railings for maximum handling * Five TENS Modes: Burst Normal Modulation SD1 SD2 * Two EMS Modes: Synchronous Alternate * System includes device lead wires four self adhesive reusable electrodes 9 volt battery hard plastic carrying case and instruction manual * Patient compliance meter can store up to 60 sets of operation manual * Power Source: 9 volt battery * Pulse Width: 50 300 s adjustable * Pulse Rate: 2 150 Hz adjustable * Pulse Ramp: 1 8 seconds * Pulse Amplitude: 100 mA peak into 500 phm load * Contraction Time: 2 90 seconds * Relaxation Time: 2 90 seconds * Wave Form: Asymmetrical Bi Phase Square Pulse * Timer: 1 60 minutes or continuous * One year warranty