Features: Analysis Time: 9 sec. The maximum time from the initiation of rhythm analysis to readiness for discharge with a new battery: Less than 20 seconds The maximum time from the initiation of rhythm analysis to readiness for discharge after 6 shocks:Less than 25 seconds The maximum time from initially switching power on to readiness for discharge:Less than 30 seconds Audible Prompts: 22 audible prompts Visual Prompts :LED prompts Controls : Two buttons - On/Off Shock Output Energy Accuracy : Shock15% into any impedance from 25 to 175Ω The Maximum Voltage :1200+50V Output disabled when the patient impedance is outside limits:20Ω tο 200Ω