Professional Flash Car Mp3 player technology(USB Ver:1.1/2.0) build-in 128MB FLSASH (128-2GB optional) Supports Hi-fi Music files, such as MP3, WMA, file playback Hi-fi audio transmission and simple and easy opration Surface with nanometer technology FM frequency: 198FM Channel (88.1-107.9Mhz) Channel switch: Press the "CH" key to change channel Full-function remote control Audio source: Flash Music decode to audio Transmitting distance: up to 30-50 meters Excellent sound quality for an extreme music experience Resume playback from the last frequency and track number even if it is restarted