[header] How to use an android ir blaster [title] Check if your phone has an ir blaster. [step] Many phones do not come with an ir blaster. To know if your phone has one, check your device and look for a glossy black piece of plastic on the top somewhere. 
It may not be very large in some cases. On the lg g3, for example, the ir blaster is about the size of the tip of a pen.