Goodyear Micro Dash Cam One Button-Plug and Play distributed by Vivo Technologies Limited. Discreet and easy to use. Can be mounted under the rearview mirror. One-button operation. Includes quick start instructions with four simple steps to get started. Built-in speaker provides voice instructions confirming the start of recording. Loop recording - once the memory module is full the camera automatically erases old videos and replaces them with the latest footage. Sound recording. Master control chip: 6624DImage sensor: 30W pixels CMOS HI704Lens angle: 70°Video resolution: High-definition. Video compression format: AVI format. Video coding format: MJPEGLoop video: seamless cycle video. Storage methods: TF card (Micro SD card) up to 32GB (memory module is not included)Built-in selective video recording function. External power supply: mini USB DC5V/0.5A - connects to the cigarette lighter socket in a car. Built-in polymer battery (for emergency use only the camera must be plugged into the cigarette lighter socket to operate correctly)Dimensions: 14cm x6.5cm x 10.5cmLess