Twinbuys 001 Car Charger Adapter Dual USB Port 2 in1 Stainless steel Safety Hammer for Apple iPhone,iPad,Tablet,Samsung,Nexus,other Smartphone/USB Devices (Silver) Dual standard usb port can charge 2 phone or tablet devices at the same time with full speed Compatible with most phone,tablet, MP3,MP4, PSP, DV, DC.etc for charging purpose in car, truck, bus etc. Aluminum and stainless steel alloy, bullet style handy design with finest craftsmanship Intelligent IC protection for circuit in: over-current, over-voltage, over heat,etc; reliable quality makes your driving safer Cone construction on the end, can serves as an emergency hammer, able to break car window glass, solid as a rock, life savor