GTMax Black USB Home Wall Travel AC Charger Power Adapter For Apple iPhone X / 8/8 Plus T-Mobile HTC Sensation 4G Brand new non-OEM. Input: 100V - 240V (U.S. & World Standard). LED light power indicator. Best replacement for original MP3 player travel charger. Intelligent IC chip inside recognizes a fully charged battery and automatically switches to a saver mode to prevent overcharging and short circuit. You must have a USB charging cable (sold separately) in order to charge your MP3 player with this charger.