2-In-1Tens Unit: Tens Unit Muscle Stimulator Combines Tens And Ems Functions For Pain Relief And Muscle Relaxation. Tens Device Provides A Safe And Drug-Free Way To Relieve Your Pain, Which Is Used By Physiotherapists; Ems Function Uses Electrical Pulses To Stimulate Muscle Contraction, Which Can Be Used For Rehabilitation And Strength Training. | | Slim Portable: This Mini Dual-Channel Tens Unit For Back Pain With Memory Function Just Weighs 0.09 Lb (Size Only 4.8''X1.3''X0.5'') For Home And Travel Use. Help Relax Your Body And Relieve Your Pain Anywhere And Anytime. | | 30 Modes, 30 Intensity Levels, 30H Of Usage: 30 Modes Offers You Various Therapeutic Techniques To Choose From; 30 Intensity Levels Meet Your Personal Need For Intensity; 30 Hours Of Usage Will End The Treatment Interruption Trouble For The Insufficient Battery. Ems Muscle Stimulator Starts Your Worry-Free Pain Relief Experience. | | Medical-Grade Multi-Size Pads: Tens Pads Are.