Our tens unit machine impulse massager, designed with 10 working modes, 10-60mins adjustable time setting, 20-level intensity, 4 electrode outputs and four electrode wires (with 2 connectors per electronic wire), you can select your preferred mode and intensity, which stimulate your acupoints and muscles from injuries and soreness from a long day of work or excessive sports and keep them supple and relaxed. 4 partners or friends can be used at the same time. Its compact size and easy operation e