i think the newer model of the kr808b-1 has a 5 sec cutoff while the older one has a 10 sec cutoff. i think the newer one is known as the vapor rite kr808b-1 or dvr9. i still haven't decided on the primer puff of the auto or having to do a .... hit on the manual and risk having it go off in my pocket. there are different lengths on them too. wish they would all specify the length and cut-off on them.
if the vendors just had everything in stock in black, platinum, auto, manual, passthrough, and if they all had the corded usb charger, usb car adapter, and separate corded ac charger. and if they all left off their logos or had nice simple white or platinum logos.