Compact dimensions and low weight blend comfort with a unique diving experience. The AquaLung Mikron Octopus is pneumatically balanced to provide top performance. It has an adjustment knob that allows the diver to optimize the opening effort. In the “Min” position, the opening effort is increased, which is ideal for avoiding free flows. In the “Max” position, the inhalation effort is reduced, reducing the work of breathing. The reduced size and weight makes the AquaLung Mikron Octopus the ideal choice for children and smaller adults. Includes 39” yellow hose.