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9901B laser comb functions:

1, RF(Radio frequency) function: using several time a day, 10mins/time;

2, Laser function: 5-7 time a week, 15min per time, it can be used twice a day;

3, RF function operation, to the up and down, right and left manner, can not continue to use the same direction at the same site;

4, Laser function operation,always be careful do not use laser light in eyes;

5, When the power is shut down, wiping the radio frequency comb with a soft cloth, and then placed in the dry enviroment for safekeeping;

6, Insist to use 2 to 3 months, can improve the scalp hair loss, hair loss, bald hair problems.