Thunder Tiger is a company specialising in remote-controlled toys (multicopters, boats, cars) that is launching the TTR-SB Seawolf, a compact submarine on the market. It allows you to look under the ship's hull without getting wet. The 77-centimetre-long vehicle has a maximum speed of 3.5 km/h and dives statically and dynamically to a depth of three metres. The front cabin, which is housed behind a glass dome, is equipped with an action cam mount (GoPro, Rollei, etc.) that sends images from the underwater realm directly to your smartphone or tablet. http://thundertiger.com