the unique u-shaped coil makes the magnetic field line gather in the middle, it can deeply stimulate the affected area. unique progressive change pulse: slowly rising - continuous high-intensity stimulation - slowly decrease. acceptable, painless, more comfortable body sensation. 360 ° telescopic positioning bracket can adjust multiple angles and fix the coil position to the hand, and the operation is convenient. the stimulus strength can reach 4t, and the frequency can be adjusted from 0-100hz stimulate depth: 8cm under the skin fully stimulate nerve and deep muscle tissue it takes only three steps to start treatment, which is convenient and fast..syi