No because like any other DAP (Music Player) the power input is only designed to charge the battery. I would even argue that if anything, during playback a DAP would actually benefit from not being charged / connected to external power due to heat management. Charging batteries generate heat and playing music generates heat. Doing both at the same time only wears down the battery more than usual. That is why some devices (Like FiiO M17) have two internal power supplies, with one being a dedicated desktop mode where the battery is bypassed and power is fed directly to the audio circuits. The N7 does not have that
