R310 2.7-inch 140 degrees Dual Lens dash board camera car dvr black box video recorder + gps logger This is LIMTECH Brand ,Made by Limtech Inc ,All unauthorized sellers are selling poor quality fake. We'll report to amazon. Dual Lens,Front lens: 140 wide-degree,Back lens: 120 wide-degree GPS Module,Gravity Sensor Adjust the position of the lens: its front/back lens can be rotated for 270 degree to the front or back