Light up when receiving a call with the LED phone case from König Design. Our customers love the perfect fit, protective function, and the cool glow in their favorite color when a call comes in. Do you also value maximum comfort, safety, and beauty? Then this practical phone case made of high-quality plastic is just right for you. The phone remains protected in the case and is fully usable. All controls and connections (e.g., for buttons, charging cables, headphones, speakers, etc.) remain accessible and usable as usual. This high-quality TPU/silicone protective case has been specially designed to maintain the design of your smartphone while protecting it from scratches, drops, or damage. Flexible yet robust like a hard case. It gives your phone a completely new look while simultaneously protecting the casing from scratches. That's König Design quality. Instructions: After attaching the case to your phone, pull the small silver tab over the flash on the back of the phone. Then, the following settings must be adjusted on the phone: Menu > Settings > Hearing Impairment > Activate Flash Notification. Now the case will light up for calls or notifications.