About this item 【Compatible】Charger Compatible Educator 300 and 400 Series Training Collars. For Models ET-300, ET-300-L, ET-302, ET-302-L, ET-400, ET-402, ZEN-300 and ZEN-302. 【Specification】Input: AC 100-240V 50/60Hz Output: DC 5V 1A Line length: 1.3M 【Note】Fits only the listed models. Please pay attention to the matching model before purchasing! ! ! 【Security】This product has been tested and validated to make sure it will work. It has several built-in protections to prevent overcurrent, overcharging, short circuit and overheating. 【Warranty】Provides 30 days money back and 24 hours fast customer service. If you have any questions about our products, please contact us.