1. Double 3D-interferential outputs; 2. Wide suction pressure range; 3. Pad with heating function; 4. Wide carrier frequency. The features: ... ,25%,50%,75%,100%9.Vector types:0,1,2,3,4,5 (secs)10.suction modes:continuous,15 times/min ... 36 pcsStainless steel frame 1 pc Interferential Current Therapy equipment GT-2800V2