Use 12V Auto Accessories in 110V Outlets: "Extend the use and practicality of your auto accessories by owning this mini 110v adapter. Use your cell phone car charger, GPS charger, CD player charger and more in your home or office. Travel light with only your car charger and this adapter. You won't need to take bulky desktop chargers along with you. All you need is your automobile charging cable and this adapter. Works with all 12V auto accessories up to 500mA."