![img_0560](https://utterbuzz.com/wp-content/uploads/2019/03/img_0560-640x480.jpg)
First drones took to the air. Now they take to the sea! The Gladius is basically a remote-controlled submarine with a 4K camera that can dive to 100 meters. A big, yellow double-barreled monster, the beast is controlled via a phone-connected remote and it is semi-tethered, which means it can roll out about 500 meters with the right gear. Read More