Features: 1¡¢[Comfortable Neck Massage] Hanging cervical spine massager provides comfortable and deep relaxation for the neck, helping to alleviate tension and promote overall well being. 2¡¢[Low Frequency Pulse] With low frequency pulse technology, this massager stimulates the neck muscles directly, reducing tension without the need for mental effort. 3¡¢[Stress Relieving] With 3 constant temperature levels, which promotes healthy blood flow and soothev the neck with continuous heat penetration. 4¡¢[Easy to Use] Designed as a hanging device that is easy to wear, allowing you to use it on the go. It has a rechargeable lithium battery inside that runs many hours. 5¡¢[Premium Materials] Made from durable and safe materials such as ABS, PC, silicone, stainless steel, this cervical spine massager practically lasts long and provides ultimate comfort. Item Type: Hanging Cervical Spine Massager Material: ABS, PC, silicone, stainless steel Battery Type: Lithium battery (built in) Package Included: 1 x Hanging Cervical Spine Massager