Well I owned the Arctic 7 and is a fantastic pair of head-phones, But the other day they were having problems with the usb cable being lose and chargering then not.
Orderd the Arctic Pro,Has a better and clearer mic and the sound is fantastic. Still have the Chat/game volume button which sold me (always play online with people so is a must for me) Has two batteries so dont have to worry about the usb to headphone charging.
Orderd it 10:40am in wellington and was in my hands by 7:19pm from Auckland, Nice Work Mighty Ape!