The Air Travel BC, Packs easily making it a great option for Traveling scuba divers. It includes the same convenient carry bag as the Travelight BCD, folding up effortlessly into a compact package. It is a rear inflation BC that features the Cressi new Commando inflator, which has a durable new design with sealed components, making it more reliable & easier for service The cressi leonardo computer console features Air,Nitrox and Gauge Modes, Three levels of conservation that the user can adjust. Speed ascent control 10m per minute. Modified Haldane and Wienke dive tables are used to calculate saturation. The Log book can hold up to 60 dives or 75 hours worth of dive information and it is updated every 20 seconds. Compact unit with a large ,Hi Definition screen. Easy to read numbers. Battery indicator on the display. Beeps are very audible under water. One front button controls all functions of the computer. User replaceable battery. MC9 Ellipse Balanced Regulator, Many of the exclusive technical characteristics of Ellipse, covered by 4 international patents, have been transferred to this new second stage. Ellipse Balanced has a slightly larger casing which is made from a sound absorbing material, and a new diaphragm that further improves the already very low inhalation effort of Ellipse. The weight is very low (the lightest in the category). The pneumatic balancing system of the piston allows for constant performance at any depth and with any air pressure in the tanks. An easy grip knob allows for the instant adjustment of the inhalation effort, even when wearing gloves, thus regulating it as first regulator or as spare regulator depending on the preferences of the user and the required use. The regulation system is protected by a double seal and is fully protected from contact with water,