There is a tiny component inside disposable vapes that people mistakenly assume is a microphone. It is not. It is a special sensor that causes the heating element to produce vapor when triggered. ### What's inside popular disposable vapes? Let's open and take them apart! Disposable vape, just three components but what it bugs me how does it know when it's empty. Led flashes when no juice is left but how? What makes led flash? What's really inside vapes? We pulled them apart to find out Geek Bar Ingredients: A Technical Teardown ejuiceDB.com eJuiceDB How to Dispose of Disposable Vapes HIPPO