Retractable Car Charger For TomTom GPS XL 340-S Easily Retracts The Cord At The Touch Of A Button State of the art Intelligent Chip circuit prevents overcharging Conveniently charge your TomTom GPS XL 340-S battery while your drive Non interrupted charging, even while the TomTom GPS XL 340-S is in use Essential accessory in case of car accident or another emergency