This Electric Wireless Neck Roll Massager has a strong structure that is tough and produces better impact resistance. The massage head adopts antibacterial, skin-friendly, and environment-friendly silicone that is designed for a perfect massage that suits most body parts. The surface of this neck roll massager is delicate and flexible, making the massage experience softer and more comfortable. As for the massage stick, it is powered by a polymer lithium battery and comes with an Android Micro USB charging interface. Its streamlined and lightweight design makes the massager easy to grab.