... 5hoursLast time:2~3hoursMaterial:ABS Plastic, Wooden BoxFunction:Support SD card, USB, FM, can connect to MP3,CD, DVD ... :13*13*14 cmProduct Weight:834gIntroduction:1`Support SD card, USB, connecting your MP3,CD,DVD,VCD,iPod ... wireless speaker.8`Can connect to computer for power supply Built-in digital power amplifier, pure and quality ... iphone, nokia, blackbarry, MP3,MP4,laptop,PSP,PC,Micro SD card