Black Haired Girl With A Navel Piercing, Sunglasses And Portable Media Player Reveals Her Black Nightgown On The Bed In The Hotel Room

A number of players support memory card slots, including CompactFlash (CF), Secure Digital (SD), and Memory Sticks. They are used to directly transfer content from external devices, and expanding the storage capacity of PMPs.
• Interface
A standard PMP uses a 5-way D-pad to navigate, however there have been many alternatives used. Most notable are the wheel and touch mechanisms seen on players from the iPod and Sansa series. Another popular mechanism is the swipe-pad, or 'squircle,' first seen on the Zune. Additional buttons are commonly seen for features such as volume control.