The Apple iPod Touch 4th Generation 8GB Player in black (MC540LL/A) is a USB MP3 player with a 3.5in. screen. It has internal memory and comes with Bluetooth, Wi-Fi, and USB 2.0 connectivity. The device supports MPEG-4, MP3, and AAC formats and has features like video playback, games, address book, upgradable firmware, camera, FM stereo tuner, and file browsing. It weighs 0.2lbs and has dimensions of 4.4in. (H) x 2.3in. (W).  This iPod has issues with the backlight so you can not see anything on the screen.