Screen: 6.5 inch color classification: standard = bare metal (need purchase accessories)   + adapter standard; standard + adapter + HD   camera; color figure captured note message brand:   model: China; special navigation 42 media format support: DVD format support: DVD-ROM: navigation navigation voice navigation and Bluetooth phone anti-theft tracking weather forecast illegal query output power: 4x45W: CD into the suction type signal-to-noise ratio: 92dBA: 0.01% distortion frequency response: 20~2KHz:   shop service install DVD upgrade: support; DVD install / upgrade for car navigation: other brands