SPECIAL MART / HD 2.7-inch LCD Dual Car Dvr + GPS / G-sensor Car Video Camera / Car Camera Surveillance / Digital Video Recorder/ Car Backup Camera for Auto Car Truck Vehicle Ultra-small size, dual lens with high definition. 1/4 inch internal photosensitive elements with low noise and high picture quality, which can capture ultra-clear pictures in relatively dark occasion Internal lithium polymer battery, which enables video shooting being carried out while charging. Internal microphone/speaker; TF Memory Card Slot: Micro TF (Support Max 32gb card, but TF card not included in package!) GPS scanning and positioning, traveling track restoring, which makes everything is under control.