System and method for treating a tissue using multiple energy types are provided. A system may include at least two flat transducers configured to produce sound waves at surface and inner layer of a skin A plurality of radio frequency (RF) electrodes may be configured to emit a plurality of RF signals. A control unit is to control the transducers such that an interference of the sound waves sustains a predefined level of energy at a specific tissue below the surface of the skin Other embodiments are described and claimed.
