AUVON Dual Channel TENS Unit Muscle Stimulator Machine with 20 Modes, AS8012.

• Pain Relief Machine. The rechargeable electric muscle massager can stimulate the sensory nerves and muscles, activate specific natural pain gate mechanism, relax your body and have pain management anytime you feel the need.

• Up to 20 Modes. Pre-set modes offer you hammering, kneading, shiatsu and more choices to help relieve pain associated with aching and fatigue muscles in the shoulder, low back, knee from exercise, normal household or work activities.

• Independent Mode Control. You can set separate modes and intensities for channel A and channel B. For example, you could choose Acupuncture mode in channel A with an intensity level of 5 for your shoulder. While in channel B, the Tapping mode is being run with the intensity set to level 12 on your lower back as a back electric stimulator.

• Industry-Leading TENS Pads. The included electrode pads can provide excellent self-stick performance for up to 45 uses. The shaped 2" TENS electrodes are recommended for more compact pain areas like the knees or elbows. Meanwhile, the bigger 2"x4" reusable patches are perfect for larger areas such as the back for TENS pain relief.