New Cervical Massager! Wherever you go, you can enjoy a full massage without worrying about a mess of tangled wires. Just sit back, relax, and let the massager relax your muscles. Rechargeable and wireless: l Equipped with a wireless and fully portable neck and shoulder massager, this neck and shoulder massager has a built-in lithium battery that lasts up to 180 minutes of massage in just 2.5 hours. Goods. Healing Heat: If you're looking for an acupressure-style massage, this advanced massager is perfect for soothing sore muscles all over the body. The legs, thighs, neck, shoulders, and back are equally easy to find, so you can improve your circulation and eventually find relaxation.