Automated External Defibrillator Kit Dimensions 2.8 X 7.4 X 8.3 Inch Operation Type Automated Operation Power Source 9 VDC, 4.2 Ah, Lithium Manganese Dioxide. Disposable, Long-Life Primary Cell Prompt Type Voice Prompts UNSPSC Code 42172101 Weight 3.3 lbs. Portable, lightweight (just 3.3 pounds with electrode pad cartridge and battery pack) automated external defibrillator Its voice prompt system even has on-demand CPR coaching to help you remember all of the steps during your resuscitation effort Kit contains: Philips STANDARD size Carry Case, HeartStart OnSite AED, SMART Pad Adult Electrode Cartridge, OnSite Battery Pack, HeartStart Review Express Software