2 in 1 Combined with the massage and care for a rest; 3500 beats per minute the magnetic shock wave electric massage; 5 kinds of massage modes available for free choice,simple to operate and convenient to use; Fabric adopts the high quality leica and filler is soft and comfortable food-grade XueDou cotton; The hest way to use it is to use it for about 25 minutes every time; 5 Modes: 1. Soft and Continuous; 2. Heavy and Continuous; 3. Heavy and alternates 70minutes; 4. Heavy and soft massage alternates 60 times per minute; 5. Repeat 1.2.3.4, each mode works for 3 seconds; Material: Cotton Color: Blue Size: Approx 30 x 27 x 8.5cm Power Supply: 2 x AA Batteries Batteries installed inside a box that designed in the pillow, you can see it as you open the zipper;