Assura® Colostomy Barrier With 3 8 1¾ Inch Stoma Opening, 1 Box of 5 Opthalmoscope Sets The Twin Stim which gives Procedure Mask Ultra Pleated 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 Double belt With belt loops Absorption of moisture from your skin providing skin friendliness and protection from irritation