Mobile DVR With Auto Record Function 1.Support 32G SD Card, 64G max ... 6-48V, 2 years warranty 3.PTZ Control Factory Develop Produce Mini Mobile DVR With Auto Record Function 3G GPS *Specification Item ... Channel, PTZ Control, 3G remote monitoring4. Best after-sale service with 2 years warranty, lifetime maintaince5. Support 3G. GPS. G-SENSOR ...