The mobile phone case connector is inserted into the mobile phone for the first time, and it lights 3-5 minutes continuously, so that the phone case is fully equipped with the mobile phone. 2. Light up the screen/call/app push the phone case will light automatically. 3. After the screen turned off, slightly delayed, then the phone case light turned off. If there is an app running in the background, it will delay the light and trigger the light occasionally; 4. If the mobile phone Bluetooth is open frequently, it may cause the phone case to be bright, and the ultra-energy-saving LED light source has extremely low power consumption, which does not affect the mobile phone life.