1.America SMC air filter, absorbs the redundant oil or cream. Working like an indicator, it is can be easily uninstalled and repeatedly used after cleaning. 2.Ultra-quiet and strong suction pump, stable air pressure, enjoy the comfortable and effective treatment. 3.RF power supply 10MHZ, provide stable RF energy, ensures treatment safety and great result. 4.There are four handles, 1 Vacuum Cavitation handle, 1 Large Velashape Roller handle, 1 Small Velashape Roller