Retractable Cell Phone Car Charger for Nokia Mural 6750 / Twist 7705 USB Data Cable for Data Transfer and Syncing with your cell phone. Connect your cell phone with your PC/Laptop by the USB port. Allow to manage & backup your phonebook, and change ring tones/logo etc. Allow you access your contacts, PC data, the Internet and e-mail. Transfer rate up to 4 Mbps.