Specifically designed to charge USB compatible devices. USB car charger adapter with full metal contacts. plugs directly into any cigarette lighter socket. Works great with most cell phones， mp3 players， and digital cameras. Charging cable not included. MPERO is a protected trademark. MPERO's USB car charger adapter plugs into any 12V cigarette lighter socket. The USB car charger adapter will charge your device and provides unlimited talk time while plugged in. It features an enhanced internal circuitry chip to manage charging status as well as an integrated electrical fuse to prevent damage to your device and it's battery from over and under-charging.