YINHANG | Snap-on 2mm Tail Type Electrode Pads Self-Adhesive Non-Woven Gel Reusable Health Monitoring Patch with Paste for Application

Instruction manual: 1)This product can not be used alone, and can only be used with Barrier test device or swallowing Physical therapy mahine. 2) when using, we suggest u start form strength 1 to gradually afterburner up to your satisfaction strength and must makesure that the pads is good connect with your skin. 3)when using, if you have a tingling sensation, please move it to the appropriate point and try again. Please ensure that the skin is clean.Note: 1. two electrodes on the surface are necessary to place,  otherwise it unable to work. 2. if ur skin is damaged, you cann't put the electrode pads on it. 3. make sure the pads connect with the machine,and then open the machine.Package includes: 10pcs = 5 pair pads  20pcs = 10 pair pads (Every two pads in one small opp bag.)