Digital display 1 model: 9 levels of strength <br>12000 times shaping <br>USB charging <br>6 modes <br>low frequency micro-current <br><br>digital display 2 models: 19 levels strength <br>12000 times shaping <br>USB charging <br>8 modes <br>low frequency micro current <br><br>Suitable for waist circumference: 65-115cm <br>110*17cm
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