1. 4-point detent design, 3D encircling and fitting the cervical vertebrae, 3 massage modes to solve all kinds of cervical vertebrae problems; 2.Designed with 15 strength, it is suitable for the elderly, middle-aged and young people and other groups, and all kinds of people in need; 3. 42 �° warm compress massage, multi effect care for cervical health; 4. Designed with tens pulse technology, it is more effective to reduce cervical pain; 5.The air bag protects the neck, fits the neck better, ventilates and kisses the skin not to be cold; 6.With rechargeable battery, 1600mAh battery, 15 minutes a day, 1 time charging can be used for 1 month; 7.360 �° floating micro curved electrode design, increase skin contact area, automatically adapt to the neck curve; 8.Design whether to operate the automatic shutdown function, save power, compact, light, high frequency mute, noise reduction design more quiet; 9. It is made of ABS resin and equipped with a small and convenient hand-held wireless remote control. Gift Box Size: 20.3*19.3*6.1 cm ; Carton Size: 63*40.5*42cm PCS/CTN: 40pcs ; N/W-G/W13.2kgs-14.5kgs 1x20`GP:10480pcs; 1x40'GP:21680pcs; 1x40'HQ:25400pcs. Technical Parameter: Rechargeable Battery: 1500mAh ; RATED POWER: 5W. Rated Working Time: 30mins; lSpare parts:1.USB line; l2.wireless controller