This Apple iPod Nano 1st Gen in black is a portable music player with a storage capacity of 4 GB. It has a headphone jack for audio output and a compact flash memory type. The unit type is a unit and the model is iPod Nano. The battery life is 24 hours and it is a 1st generation product. This iPod has been modified and is working fine. It is a great choice for those who are looking for a reliable and compact music player.