This portable neck massager is the perfect pair for our portable back massager. Wireless Massage Machine A rechargeable lithium-ion battery powers the neck massager and does not need to be plugged in during use. A relaxing massage for up to 70-80 minutes on a single charge. It allows you to enjoy a soothing massage anywhere Kneading Shiatsu Massage Hidden under the premium PU leather cover is a unique Shiatsu massage roller with 8 massage nodes. The nodes can be rotated and squat along the tight, stretched muscles, providing a deep tissue massage like the hands of a professional massager. There are 2 levels of shiatsu intensity for options.