Light up when you receive a call with the LED mobile phone case from König Design Our customers love the perfect fit, the protective function and the cool light up in their favourite colour when they receive a call. If you also value the highest level of comfort, security and beauty, then this practical mobile phone protective case made of high-quality plastic is just the thing for you. The phone remains protected in the protective cover and is fully usable. All operating elements and connections (e.g. for buttons, charging cable, headphones, speakers, etc.) remain free and can be used as usual. This high-quality TPU / silicone protective case was specially designed to retain the design of your smartphone, but at the same time protect it from scratches, drops or damage. Flexible and at the same time robust like a hard case. Gives your mobile a completely new "look" and at the same time protects the case from scratches. King design quality. Instructions: After attaching the cover to your mobile, pull the small silver leaf over the flash on the back of the phone. Then you need to make the following settings on the mobile: Menu > Settings Settings > Hearing Impairment Hearing Impairment > Flash Notification Enable Now the cover lights up when you receive a call or notification.