4 in 1 Multifunctional Electrotherapy Device - Mushroom-shaped tube for treating large areas; Tongue tube for sensitive areas, such as dark circles under the eyes; Curved tube for areas with acne and pimples; Comb tube for stimulating blood circulation in the scalp for new hair growth. Operation Method: High frequency treatments may involve placing the electrode directly on the skin (direct HF) or leaving a gap between the electrode and the skin (indirect HF). Direct HF: Helps you treat normal oily skin. The direct method is suitable for normal oily skin. Indirect HF: Helps you treat normal dry and aging skin. Suitable for normal dry and aging skin. How to Use the High Frequency Device? 1. Turn the wand down to zero and insert the selected glass electrode into the high frequency device. 2. Turn the knob to adjust the intensity; increase the intensity by turning clockwise, and decrease the intensity by turning counterclockwise. 3. Increase the intensity to a comfortable setting and have your finger touch the glass electrode before applying it to your skin. 4. Move the electrode in small circles around the skin. Specifications: 1 x High Frequency Handheld Handle 1 x English Manual 1 x Comb Tube 1 x Tongue Tube 1 x Curved Tube 1 x Mushroom Tube