This rearview device 11 comprises an information acquisition unit 17 which is provided on a vehicle body 3 of a vehicle 1 to acquire information on an area behind the vehicle 1 and cause the vehicle occupants to be aware of the information and a housing 13 housing the information acquisition unit 17 therein, and is characterized by the housing 13 having an upper face 31 facing up in the vertical direction and a lower face 33 facing down in the vertical direction, and by being provided on the rear edges of the upper face 31 and lower face 33 with inclined portions 45, each inclined at a prescribed angle α so that the space between the upper face 31 and lower face 33 narrows along the direction from the front to rear of the vehicle 1.