PVC-2300
The NEC (Nippon Electric Company) PVC-2300 was a clone of the Sony SL-8000 One of the earliest piano key type models.
PVC-700
The NEC (Nippon Electric Company) PVC-700 is very like the Sony SL-C5 in features supplied. It is conventional in its design and comes with a wired remote.
PVC-764
A mono unit with a 4-program timer, 12 channel presets, 12 hour am/pm style clock and a mechanical tape counter.