Product Details The handheld Electro-Sonic DF Mobile Device combines two sophisticated technologies low frequency sonophoresis (sound waves) and pulsed iontophoresis (electric current) designed to be used with specific Environ products to help deliver more essential nutrients to where the skin needs them most making a lasting difference to the appearance of your skin. How To Use 1. Pre-cleanse cleanse and tone your skin with your preferred Environ products. 2. Dampen the conduction cloth and wrap it around the back of the device ensuring that the cloth covers both metal panels and the palm of the hand makes contact with both panels. Cloth must be slightly damp not wet. 3. Apply the selected Environ product to the area of concern. The skin must remain constantly moist during the treatment reapplication of the product may be necessary. 4. Press the ON/OFF button for one second to switch the DF Mobile ON. By default the device switches on P 1 (programme 1) and the indicator light shines b