M1 Features:

1. Ergonomic U-shaped design, made of memory cotton and soft velvet material, the massage pillow can effectively absorbs pressure and offers your neck the right level of comfort.
2. The massage pillow has 2 kneading nodes to improve your blood circulation on the neck, And with hot compress function, relax the muscles, relieve neck pain and enhance your well-being.
3. easy to use, and supports vibration massage to your neck, the massage time is set to automatically turn off after 15min.
4. Built-in 2000mAh large capacity lithium battery, which can be recharged quickly and conveniently. Cordless working, you can use the neck massage pillow anytime anywhere.
5. Adopts high frequency mute motor, low operating noise and long lasting, very suitable for using at home, in office, in car, in the plane, etc. No bother to others.

M2 Features:

1. Ergonomic U-shaped design, made of memory cotton and soft velvet material, the massage pillow can effectively absorbs pressure and offers your neck the right level of comfort.
2. Please note: M2 only the function of vibrating the neck, No massage and hot compress function