4.5V 1A AC/DC Adapter Switching Wall Wart Power Supply with 3.5×1.35mm Plug
Battery Polarity Reversal. 1 x 4.5V 1A AC Power Adapter. DC 4.5V 1A / 1000mA. Short circuit protection. 3. 5mmx1.35mm (male) DC power plug. Over current protection. PRE-AUTHORIZATION MUST BE OBTAINED BEFORE SENDING ANY PRODUCT TO US.