Special handle design to adjust roller position and massage intensity the more tightly you hold it against your body, the harder the rollers will massage A comprehensive thermal protection device, effectively protect human safety and product life. When the internal motor overheating or quartzfiber far-infrared radiation overheating protection mechanism will start hot, cut off the current, so that the host suspended. Once the temperature drops to secure critical point, automatically starts to work again. Name: Car home dual massage warm shawl Function: massage, kneading, warm Massage head: four large massage heads, four small massage head Massage parts: neck, back, waist, abdomen, buttocks, arms, thighs, calves. All items will be shipped within 3- 5 working days after the payments are clear