Adventure should take you anywhere, any way you want to get there. That's why the Suunto D4i still gives you great freedive features as well as the option of a wireless readout of your tank pressure and air time. The new DM4 software allows easy synching with Movescount.com, where you can share your dive profiles, images, and experiences online. This makes the D4i a great choice for those who love socializing as much as diving. Go with your own dive inspiration, you'll be amazed at how far you can go on just one breath. The Suunto Wireless tank pressure transmitter gives you current tank pressure and remaining air time with just a glance at your wrist. Before your dive, simply pair the transmitter with your dive computer and you re good to go. The transmitter s handy green LED light lets you know that it s on.