Modern-Tech 2-in-1 Micro USB Car Charger & Holder/ Mount for HTC Desire HD, 7 PRO, Gratia, 7 Surround, Inspire 4G, ThunderBolt 4G, FreeStyle, Incredible Power and secure holding of your phone in the car guaranteed. This combined holder-charger will ensure your battery stays fully charged and your phone is secure in the car. Four sprung clips ensure that the unit is retained securely in the cigar lighter socket. These top quality branded units offer overload and surge protection to avoid accidental damage in the event of the car being started with the power cord still connected.