copy and paste from GotVapes web site:
"NOTICE: THESE ARE GENUINE VISION PRODUCTS & NOT KNOCK OFF PRODUCT LIKE MANY SITES SELL!!THE NEW V2.5 HAS THE AIRHOLES IN THE CONNECTOR ABOVE THE
THREADS. WE HAVEN'T HAD A CHANCE TO MAKE CHANGES TO THE PICTURES HERE. PLEASE DO NOT SEND IN A TICKET SAYINg YOU RECEIVED THE OLD VERSION. WE HAVEN'T HAD NOR HAVE THEY MANuFACTURED THE OLD VERSION IN MONTHS. AGAIN, THE AIRHOLES ARE IN THE CONNECTOR ABOVE THE THREADING. THANKS!"
The picture on the top right shows the air hole in the bottom base, the Genuine Vision Vivi Nova has the air hole on the 510 connection.
The picture on the bottom right showing the insides look like it has a 2.5v head on it, the little silicon cap is how I can tell.
Hope this helps
