Krakatoa is a modular explosive device used for explosive ordnance disposal (EOD) or demolitions developed by the British company Alford Technologies. The device is designed to fire a number of different projectiles, operates both in air and underwater, and can be used in a vertical or horizontal orientation. The device itself is "no bigger than a standard can of coke." It is named after the 1883 eruption of Krakatoa, which resulted in the loudest sound ever heard and was the second deadliest volcanic eruption in recorded history.