FITE ON UL LISTED AC / DC Adapter Power Supply for RADIO SHACK CONCERTMATE 950 Cat. No. 420-4023 410This adapter from FITE ON is approved for Sale in the US and Canada by Underwriters Laboratories (UL) and Got the certificates. with short circuit protection,over-current protection, over-voltage protection, overload protection, over temperature protection.The most important is, it will neither do harm to your device.☛AC Adapter Specifications:* Input Voltage: 100-240, 50-60 Hz* DC Line Length: 5ft/1.5m☛Package Includes:*1 x AC Power Adapter☛Warm Tip:★Keep the adapter dry, do not store or use adapter in hot and cold environment. If you use the charger for a long time, please keep it suitable ventilating and humidity.