◆Without built-in flash memory, support USB flash drive; SD/MMC card  
◆With LED display, display numbers only, no lyrics,/With LCD display, display both numbers and lyrics 
◆Built-in FM wireless transmitter, Frequency range 87-108MHz 
◆Audio input jack(3.5mm jack) for MP3/CD/DVD/MP player 
◆Auto power off frequency, song, volumn memorizing function 
◆Support MP3/WMA/ASF format music
◆Infrared remote control
◆12V-24V power supply