1.The design has 4 massage heads, four areas massage shoulder and neck; 2.5 massage mode adjustable, 9 force adjustable, comfortable and controllable; 3.42 �°warm compress massage, warm penetrate skin more comfortable; 4.Designed with tens pulse technology, it is more effective to reduce cervical pain; 5.8 kinds of Chinese massage techniques, with the circular traction function of silica gel elastic arm; 6.With rechargeable battery, fast charging and long endurance; 7.360 �°floating micro curved electrode design, increase skin contact area, automatically adapt to the neck curve; 8.Equipped with wireless remote control, easy to operate; 9.Designed to be comfortable, small and light. Gift Box Size: 22.5*20*14.5cm Carton Size: 75*24*43cm PCS/CTN: 20pcs ; N/W-G/W:11kgs-13kgs 1x20`GP:7280pcs; 1x40'GP15060pcs; 1x40'HQ:17660pcs. Technical Parameter: NPUT VOLTAGE: 110-240V~50-60Hz NPUT CURRENT: DC5V~1.0-2A RATED POWER: 3W. ; Rated Working Time: 10mins Spare parts:1.USB line