Save your batteries. Use this adapter to provide regulated, filtered power to your 3, 4.5, 6, 7.5, 9 or 12VDC device (up to 1000mA). Just match the polarity of your device when connecting the plug that fits your device. 2 Prong USA type plug.
IMPORTANT NOTE: Device tip plugs are not included. Device tip plugs are required for use and are sold separately.