***NOT COMPATIBLE WITH 2016 AND NEWER YUKON OR SIERRA VEHICLES**** This item includes two headphones - enough for two passengers. Perfect for long road trips, these headphones can entertain passengers while leaving the driver undisturbed. Great replacements for destroyed or lost headphones! These headphones fold flat for easy storage, and are ultra-light weight for comfort. The ear pieces are made from a high quality breathable, washable, and replaceable foam. Our heavy duty foam ear pieces are long lasting and work passively to eliminate external sound interference. The plastic composite material used to produce the headphone frame is specifically made for the extreme temperatures of your vehicle. Neither the headphone material, nor the electronics will be affected by cold or hot temperatures.