how long does it last, the battery life using that? It works only on iphone 4/s?
It works on the new iPhones with the adapter, which I have used. I keep some mics, the ixJ2 and an adapter in the glovebox of my car as my standby.
On this occasion I used an iPhone 4s (64gb) to keep the connections to a minimum in stealth mode. I have the RØDE Rec App which enables 44.1/24 recordings.
From memory after about 2 and a half hours the battery was still more than 70%. I was using a battery box, and the PIP was switched off on the ixJ2. I doubt the PIP on the Tascam unit would be sufficient in loud situations, and it would probably drain the battery on the phone a lot quicker.
Now interested to know what PIP voltage it does supply, so will check later.
Edit: Just checked the PIP voltage and it was 3.56v which is actually higher than I expected. I might try ditching the battery box next time. Also, just charged iPhone 5 up to 100% battery and ran a recording for 90 mins, PIP on, Airplane mode on, and the battery ran down to 86%. So more than adequate for stealth.