RH Peterson Real Fyre PCC-1 Pine Cone Cover and Crackler. Allows you to add the sounds of a real crackling fire to your silent, gas-powered, decorative logs. Real-Fyre has enclosed the sound speaker in their unique housing. The Pine Cone Crackling Sound System is designed so that the speaker is facing toward the rear of your hearth. This allows the sound to 'bounce' adding further to the realism.