Was $15. SONY AC-ES305 AC ADAPTOR 3V 500mA POWER SUPPLY CLASS 2. To see other Stereo Equipment I have for sale, type "RSTEREO" in the search box above. Manufacturer: SONY Model Number: AC-ES305 Input Voltage: AC120V~60Hz 5W Output: DC 3V @ 500mA Connector: Round Barrel Pin Dimension: 0.5 x 2.4 x 10 mm approx. Weight: 100 grams approx.