This travel charger is compatible with the following Samsung models : Galaxy Admire 4G / SCH-r820 Galaxy Axiom / SCH-r830 Specifications : Input : AC 100V-240V, 200mA, 47-63Hz Output : DC 4.5V-9.5V, Max 800mA Charges your phone battery rapidly. Built-in IC chip to prevent overcharging and short circuit. Can be connected to a desktop charging stand. LED charging indicator. Allows you to charge your phone and talk at the same time. Small and lightweight, which is convenient for travelers. Best replacement for the original charger. Get one for the office, one for your home and one for travel. * Equivalent to OEM travel chargers (MPN : ATADU10JBEBSTD, ATADU10JBE).