A It depend on the skin sensitivity of each one. We design 3 different grades of EMS intensity. People can choose the suitable one according to their skin sensitivity and tolerability.

A1. Yes, most users can feel tingling sensation caused by EMS.
2. Because the skin sensitivity of everyone are different. We design 4 different grades of EMS intensity. People can choose the suitable one according to their skin sensitivity and tolerability.

AGenerally, the charging time is around 5 hours, but there will have some individual differences according to the device itself, charing power,USB cable, adapter, temperature,and so on. When full charging, the blue indicating light will be on.

AIt will let user feel slight prickling caused by microcurrent, especially when using it on the wet skin or on the place which is close to the hairline.

AIt's around 38-42℃ .

A1.MF: it is not necessary to use with skin care products.
2.EMS and EP: it is better using serum or cream.
3. RF: it is recommended using Lifetrons RF facial gel for the best effect. Please wash your face after RF treatment, because RF facial gel is oily and is not suitable for staying on your face for a long time.