Professional Flash Car Mp3 player technology(USB Ver:1.1/2.0) build-in 128MB FLSASH (128-4GB optional OR NO NEED FLASH) Supports Hi-fi Music files, such as MP3, WMA, ASF file playback Draw power from cigarette lighter jack in the car (12V or 24V DC power) Hi-fi audio transmission and simple and easy opration Surface with nanometer technology;Voltage: 9-28V DC power Operating current: < 60mA;FM frequency: 200FM Channel (87.5-108Mhz) Channel switch: Press the "CH" key to change channel Built-in in earphone jack ;Full-function remote control Audio source: Flash Music decode to audio Transmitting distance: up to 30-50 meters Resume playback from the last frequency and track number even if it is restarted Excellent sound quality for an extreme music experience Special audio connector options for different requirements Easy-to-use design plugs right into the DC plug Suitable for any car, no need to install any extra equipment Support voice record and playback Support transmitter power adjust (1-4steps) Support SD/MMC/TF card and USB card reader