... Field Therapy Device Generic Name: Electric Potential Therapy Device Model: JFK-XN-A (Upgraded Model) Classification: Household medical deviceThis Electric Potential Therapy Device ... and functional electronic pen for topical therapies. Specifications: ModelJKF-XN-A (Upgraded Model) High Potential1500V, 3500V, 5000V, 9000VNegative Potential-1500V, -3500V, -5000V ...