Light on when calling with the LED mobile phone cover of König Designers, the optimal fit, the protective function and the cool lighting in your favorite color when entering a call you also attach great importance to maximum comfort, security and beauty? Then this practical cell phone protective cover made of high quality plastic is just the right thing for you. The phone remains protected in the protective cover and is fully usable. All controls and connections (e.g. for keys, charging cables, headphones, speakers, etc.) remain free and can be used as usual. This high-quality TPU/ silicone protection case was specially designed to maintain the design of your smartphone, but at the same time protect it from scratches, falls or damage. Flexible and at the same time robust like a hard case. Give your cell phone a completely new "look" and at the same time protects the housing from scratches. König Design Quality. Instructions: After the shell is attached to your cell phone, the small silver leaflet is pulling over the flash on the back of the phone. Then you have to make the following settings on the mobile phone: Menu> Settings> Hearing disability Hearing disability> Light-light notification Activate NUNSTION The case lights up when calling or notifications. Protective cover made of silicone / TPU with perfect fit Precise neckline for all connections & function keys lights up when a call is entered in your chosen color and protects against dust, water and damage.