1.Please clean the apparatus with clean water after its use and preserve properly;
2.Power plug with ground pin must be used before application of this apparatus and ensure that the power outlet is truly grounded.
3.The apparatus voltage is adaptive; in case of unstable local supply 5 voltage, we suggest users to add power matching stabilized voltage supply.
4.Avoid poor contact and ensure a certain degree of wetness at the part
5.contacting with the skin, which may be achieved by wiping with water.