A device for a non-invasive treatment of a patient for improving the visual appearance of a patient, comprising: a radiofrequency generator configured to generate radiofrequency energy with an output power in a range of 10 W to 150 W; an electric current generator configured to generate a pulsed electric current; a flexible pad comprising an electrode, wherein the flexible pad is configured to be attached to a body part of a patient during a treatment, wherein the flexible pad in its narrower spot has a thickness in a range of 0.1 mm to 60 mm, and wherein a surface area of the electrode facing towards the patient during the treatment is in a range of 1 cm 2 to 10 cm 2 configured to fit to the area over a muscle within the body part; a switching circuitry configured to regulate energy delivery from the radiofrequency generator and the electric current generator to the electrode; a control unit comprising a CPU, in connection with the switching circuitry, wherein the control unit is configured to control the radiofrequency generator such that radiofrequency energy is delivered to the electrode and to control the electric current generator such that a pulsed electric current is delivered to the electrode, wherein the control unit is configured to control the device in order to: apply radiofrequency energy to the body part of the patient via the electrode in radiofrequency pulses, thereby causing radiofrequency heating of skin of the body part to a temperature in a range of 37.5 °C to 65 °C, wherein each radiofrequency pulse has a duration in a range of 0.1 ms to 10 s; and apply the pulsed electric current with a pulse duration in a range of 0.5 μs to 500 ms to the body part via the electrode, thereby causing an electric muscle stimulation causing contraction of the muscle within the body part; and wherein the device is configured to provide the radiofrequency heating and the electric muscle stimulation during the treatment. a radiofrequency generator configured to generate radiofrequency energy with an output power in a range of 10 W to 150 W; an electric current generator configured to generate a pulsed electric current; a flexible pad comprising an electrode, wherein the flexible pad is configured to be attached to a body part of a patient during a treatment, wherein the flexible pad in its narrower spot has a thickness in a range of 0.1 mm to 60 mm, and wherein a surface area of the electrode facing towards the patient during the treatment is in a range of 1 cm 2 to 10 cm 2 configured to fit to the area over a muscle within the body part; a switching circuitry configured to regulate energy delivery from the radiofrequency generator and the electric current generator to the electrode; a control unit comprising a CPU, in connection with the switching circuitry, wherein the control unit is configured to control the radiofrequency generator such that radiofrequency energy is delivered to the electrode and to control the electric current generator such that a pulsed electric current is delivered to the electrode, wherein the control unit is configured to control the device in order to: apply radiofrequency energy to the body part of the patient via the electrode in radiofrequency pulses, thereby causing radiofrequency heating of skin of the body part to a temperature in a range of 37.5 °C to 65 °C, wherein each radiofrequency pulse has a duration in a range of 0.1 ms to 10 s; and apply the pulsed electric current with a pulse duration in a range of 0.5 μs to 500 ms to the body part via the electrode, thereby causing an electric muscle stimulation causing contraction of the muscle within the body part; and apply radiofrequency energy to the body part of the patient via the electrode in radiofrequency pulses, thereby causing radiofrequency heating of skin of the body part to a temperature in a range of 37.5 °C to 65 °C, wherein each radiofrequency pulse has a duration in a range of 0.1 ms to 10 s; and apply the pulsed electric current with a pulse duration in a range of 0.5 μs to 500 ms to the body part via the electrode, thereby causing an electric muscle stimulation causing contraction of the muscle within the body part; and wherein the device is configured to provide the radiofrequency heating and the electric muscle stimulation during the treatment.