A backpack massager for comfort and warmth while carrying heavy

books or load on our backs.

FOR THE NECK AND BACK AND SHOULDER FOR THE NECK AND SHOULDER

Cost of normal massager is around 15-150 dollars.

The competitors are:1. Shenzhen pango electronic co.ltd (china).2. Avec Ltd. (HONG-KONG).

Our backpack massager cost:$20-$50.