5V AC Adapter For Educator Dog Ecollar ET-300 ET-300-L Zen-300 ET-302 K9 400 402 (options above)Input Voltage 100-240VAC 50/60Hz. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection).products has a 90 day Money-Back Guarantee, and a 1-year limited warranty !Adapter/Charger 100% Compatible. Shipping from USA.product made with the highest quality .Brand-new, Replacement adapter for model listed.Please check your model before purchase. If you unable find your model here please contact us with your product name and model information we will help you find right adapter/ charger.