For HTC ThunderBolt 4G / mytouch 4G / Wildfire / HD7 / HD2 / Surround / Desire / Aria / myTouch 3G Slide / EVO 4G / Droid Incredible / HD2 / Nexus One Dual USB Car Charger 2100mah Dual USB sockets allow you to charge 2 devices at once Charge most devices that use a USB charging cable, (iPod, iPhone, cell phone, MP3, PDA, Blackberry etc..)) IC Chip recognizes a full battery & automatically switches to saver mode Can be used with input voltages from 12V to 24V DC (both car & truck) USB Cable is not included