Car Mount DC Socket Holder with USB Dock Cradle Multi-Angle Rotation Black. Your car's DC socket accessory outlet is a convenient and unique location for mounting your mobile phone. With this car holder, you're able to hold the phone securely from the outlet slot. Includes a built-in USB that can be used to power up your phone or any other USB enabled device. This sturdy holder wont move or shift while you drive and definitely wont drop your phone. The holder plugs right into your DC lighter socket so there is no need for a suction cup and wont leave any sticky residue on your cars windshield or dashboard. IMPORTANT NOTE: USB CABLE IS NOT INCLUDED. YOU NEED TO USE YOUR OWN CABLE.