The lightweight, compact design makes it easy for instructors to bring one for every person in the class! This trainer offers a universal training experience to prepare students for the use of many different AEDs and is compatible with any type of CPR manikin intended for AED training. Features 5 pre-programmed scenarios with clear voice prompts, 2 scenarios automatically deliver a shock, giving this unit an automatic and semi-automatic shock feature, English/Spanish options and a metronome which can be controlled. Available in 4-pack or individually. 3 year limited manufacturer warranty.