I bought this at the beginning of the year for a trip to the Caymans that isn't happening. I also wanted to try the HUD and discovered it wasn't for me. This unit has less than one hour of pool time ( maybe 300 psi) and has not been registered for warranty. The complete kit is here, with the sending unit, HUD, generic mask clip on device, and I also bought a Scubapro HUD mask which I'm including, and of course all original packing and the box. Price is $850 with shipping included. I accept checks, MO, Venmo or Paypal F&F.