The RAM-B-166-SYM1PEC-ENT1U twist lock suction cup mount consists of a 3.3" suction cup locking base, socket system and spring loaded powered docking station (EXTERNAL POWER, CIGARETTE PLUG, BARE WIRE VERSION) for Motorola MC70 and MC75 handheld mobile computers. Also included is an extra 2.5" diameter round base that contains the universal AMPs hole pattern with 1" ball. The mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. Simply attach the suction cup base to the windshield of your vehicle for an easy and safe way to view your device. The suction cup is designed to have an extra strong hold on any smooth non-porous surface, but for best result, mount the suction cup on a glass or non-porous plastic surface.