$80.34
Specification:Voltage: 100-240VPower Supply: 9V/500mAPower: 5WCharging time:3-5 hoursUsing time:About 3 hoursSize: Approx. 185 x 82 x 82mmNumber of dot matrix electrodes: 144Working frequency: 1MHZAdvantages:* 144 Little effect tips, 2*2cm big flat...