Over Voltage, Over Current Protection. Two way radio battery eliminater for Kenwood TK385Draw the power from the vechile ... and durabilityOvervoltage Over Current protection functionSuit for Kenwood two way radio :TK385,TK280,TK290,TK380,TK480,TK481Specification :-Switching IC Design ... MAX :3A-High efficient >90%,-low heat dissipation two way radio accessor battery eliminator for Kenwood walki talkie