I bought this, but my wife also bought something similar, so it's a waste, and I'm selling it before opening it. It's new and unopened. If anyone wants it, please take it! Details created by AI are as follows: 【Functionality】 This CVOSUN neck care device is equipped with a heating function, which has the effect of relaxing the neck muscles. It can be operated with a remote control, making it easy to use. 【Design】 The slim and lightweight design makes it easy to carry and use in everyday life. The shape fits the neck and provides a comfortable feel. 【Specifications】 Model JP-01, input 5V 1A, battery capacity 2000mAh, allowing for long-term use. - Brand: CVOSUN - Device Type: Neck Care Device - Model: JP-01 - Input: 5V 1A - Battery Capacity: 2000mAh - Price: ¥7,980 - Functions: Heating, Remote Control, Neck Massage, Slim and Lightweight Design Thank you for looking.