FOREO Issa 2, , Sonic toothbrush unisex, The FOREO Issa 2 Issa 2 sonic brush functions on the principle of sonic vibrations to get gentle yet effective movement and circulation.Characteristics:cleans even interdental spaces effectivelyprevents tartar and tooth decaymassages gums and improves circulationhelps keep teeth naturally whiterHow to use:Follow the instructions for use included.