Prestan UltraTrainer 4-Pack with English/Spanish Languages, 12 “C” batteries (not included), 4 sets of Adult/Child Training Pads with unique Pad Sensing System , 4 pad storage trays, instructions, 4 unit carry bags and 1 master carry bag. The Prestan UltraTrainer offers features not found on any other universal trainer and is the most accurate representation of how current trainers in the marketplace perform. This compact and lightweight unit will give students a realistic training experience with training pads that sense when they are placed on a manikin. In addition, the pads are preconnected and voice prompts are clear and calm. Instructors can customize their training classes with options to turn on or off the compression metronome and/or the “give breaths” voice prompt.