The TINYPRO EMS Microcurrent Lymph Massage Device uses acupuncture-type stimulation with an electric pulse to reduce body fatigue and inflammation to improve blood flow in order to produce sufficient deep relaxation of your neck muscles and cure a variety of illnesses. Also, It provides 2-way usage in 1 EMS device. The body benefits from the stimulation of acupuncture sites by the EMS Microcurrent Lymph Massage Device, including pain relief, improved blood circulation, relaxation, and more. A general massage will be beneficial to your body since it eases weariness and muscular strain. Electric Muscle Stimulation (EMS), also known as neuromuscular electric stimulation (NMES) is the elicitation of muscle contraction using electric impulses. The impulses mimic the action potential coming from the central nervous system, causing the muscles to contract. MS is proven to be quite effective as a proactive tool for muscle strengthening /relaxing. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.