1. 3D Designed by the engineering of the human body, fits the physiological of the neck. 2. Mutliple working modes to : 10 vibration patterns& 15 intensity . 3. Frequency pulse, magnetic effect, high frequency vibration massage and circular traction - all these 3 working functions made up of an energy area. 4. Relieve neck soreness, blood circulation, sleep quality, Soothe nerves, Stimulate cell activity, Ease muscle and Relieve fatigue 5. TENS low-frequency pulse technology deep care magnetic activates deep stimulation of muscle cells and massage the neck without passing through the , directly acting on the muscles to relieve discomfort Product parameters Product name: massage instrument Massage mode: 10 modes Heat sensing temperature: about 42 Standard voltage: 3.7V Usage time: 15 minutes Duration: about 7 Features 1. Set the health massage time 15 minutes / time. 2. Hot compress function to further enhance the comfort and help relieve fatigue. size: 142 x 138 x 32MM Material: PC+ silica gel colour: white Package Contents: 1 x vertebra massager 1 x Data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.