日韩一区二区三区精品,欧美疯狂xxxxbbbb牲交,热99re久久免费视精品频,人妻互换 综合,欧美激情肉欲高潮视频

內(nèi)容簡介

A portable media player, or PMP, is a device that is capable of storing and playing digital media, such as audio, images, and video. Some players include the ability to record audio, with a built-in microphone, line-out cable, or FM tuner. PMPs come with either flash or hard disk storage, with several players supporting memory card slots, including slots for CompactFlash (CF), Secure Digital (SD), and memory sticks. In addition to USB connectivity, many players also offer Bluetooth and/or Wi-Fi. Most PMP circuits include some or all of the system blocks shown above.

下載說明