Without making direct contact. SONA 2's sonic waves offer fast yet gentle clitoral stimulation for mind-blowing pleasure. Compared to original bestseller. SONA 2 has softer. deeper and overall bigger mouth for complete satisfaction - both inside and out. Medical grade silicone hasn't changed. but upgraded so that's extra soft to the touch. SONA 2 is rechargeable and 100% waterproof. SONA 2 has 12 powerful yet gentile enough settings so every user can find the perfect pace. The second change. which came for more convenient use. is the way SONA 2 turns off. Instead of pushing and holding ( - ) on the control board. the middle button ( ) acts as setting changer and off button. This is a massager that is easy to clean. body-safe and durable - it has up to two hours use in one go. Nevertheless. SONA 2 is an upgraded version of well-known. award winning toy which makes pleasure unmistakable. Lastly. same as all LELO toys. it comes with 1-year warranty that is easy to register at lelo.com/support.