The Air Z O2 was specifically designed for use with the Dolphin. I'm pretty sure it is the only wireless set up. I have had no problems at all with mine. My instructor/LDS has been using a Air Z/Oxy2 for several years and has had no issues. One thing I have noticed is that I never (knock on wood) lose signal with the Air Z. On my OC set up I use Oceanic, and have for many years. I have a VT Pro now, but have also had a Datatrans and have always had signal loss problems. This is my first Scubapro computer, and I'm very pleased. PM me with any questions. FD
