Light pain on cervical vertebrae are likely to cause major problems, such as neurasthenia, memory loss and so on. Therefore, we should pay more attention to this problem. In modern times, people are busy in working in a fast-paced life. It is very important to have a comfortable rest environment.The neck massager will be a great partner in your busy life and work.Specification Material: ABSProduct size: 16 * 14.5 * 9.5 CMCharging interface: USBMassage contacts: 4Life time: 2 hoursStandby current:> 100uALithium battery: DC3.7V === 1200mAhMassage intensity: 15 types for each modeApplicable parts: neckPhysical therapy classification: magnetic therapyColor: White , BlueApplicable occasions: work and rest, travel, leisure at home?NOTE: For beginners, we suggest to turn it down quite a bit, start from the lowest intensity (intensity 1),and adjust the intensity according to your reaction. Welcome to my store, we will be happy to help you, please send me any questions, we will reply you within 24 hours