Our PureHear Ear Acupoint Device contain silicone and plastic. It can reduce ear noise and improve your concentration at work and school. Targeted massage calms you, reduces persistent ear discomfort and helps you fall asleep faster and longer. Its application is simple: clean and dry your ears, gently place the product in your ears, adjust as needed, and wear it throughout the day. It can effectively reduce noise, improve concentration and improve sleep quality.