Self-adhesive pads with clasp connector Rimba Electro Play. Each of the pads is unipolar, so you need the two are connected to work. They can be used 10 to 15 times depending on the use you give them. Keep in mind that they work better if the skin is clean and hair-free. It is not advisable to use them if you have sensitive or irritated skin, if you are pregnant or if you have heart problems.