It can be used to improve back pain, shoulder and neck pain, body aches, numbness of limbs, physical weakness, joint discomfort and other symptoms. Short press the acupuncture function key to increase the gears of the electrodes, 0-6 gears are cycled in turn, 1 gear indicator flashes when the 0 gear is on, 1 gear indicator is always on when the 1 gear is on, and 2 gears when the 2 gear is on.
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