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11 Before You Put on the Transducer Arrays
You will need to use four transducer arrays (two black and two white arrays) each time you change the arrays.
The black arrays are placed on the front and back of your head, and the white arrays are placed on the sides of your
head. Remember: Black goes on the back, white goes on the right. Change the four (4) transducer arrays at least
two times per week (every 4 days at most) to continue treatment with Optune
®
. You may change the transducer
arrays with the help of a doctor or caregiver if needed.
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