Come and see our amazing products. Adjustable Straps with Nylon fastening can be used to secure the back neck massager to your favorite chair, back massager comes with an AC adapter which can work in both 110V-240V and a DC adapter for the car. Whether you are in the office, car or on the sofa in your home, you can enjoy the relaxing feeling of a massage.Neck shiatsu massager will automatically changes direction every minute, just like the hands of a masseur, give you a more authentic massage experience. There will be no pain during back massage or Neck Massage. Back massager high-grade durable fabric with softer touch sense and skin-friendly is more suitable for long-term use. Pls confirm further with us if any query about packing info, inventory status and time schedule.