Features： 1、Fit Physiological Arc Of Human Body's Lumbar Spine: Arc stretch traction, stretch lumbar spine, use principle of gravity arc stretching to reduce the pressure on the waist. 2、Multiple Large Magnetic Blocks On The Surface: Can form a composite magnetic field on various parts of the waist and back, and go deeper to each acupuncture point of the waist. 3、Low Frequency Electrical Impulse Physiotherapy: Using special frequency and amplitude of low frequency pulse current to simulate acupuncture physiotherapy mode to stimulate various parts. 4、Selected High Quality Fabrics: Fit human skin, sweat wicking mesh, comfortable heat dissipation, durable and wear resistant, and good air permeability. 5、High Quality Motor: Low voltage and silent, longer life, improved massage strength, not easy to damage after long term use. Specification： Item Type: Back Neck Massager Applicable Symptoms: Lumbar fatigue and pain, lumbar back stiffness, lumbar disc herniation Pulse Strength: 30 Gears Vibration Mode: 9 Types Pulse Mode: 9 Types Temperature Adjustment: 3 Gears Automatic Timing: 3 Types Inflation Mode: 3 Types Applicable Parts: Neck, shoulders, thighs, calves, lumbar spine, back Package List： 1 x Massage Lumbar Pillow 1 x Power Adapter 2 x Electrode Patches 1 x Electrode Wire