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Rolsen Radio RBM-531 - great solution not only for those who loves music, but also for those who need to use a loud-speaker. Due to comfortable microphone it project your voice across the field or the conference room easily that so you can get everyone’s attention fast.

It is featured not only with FM radio but also with MP3-player due to MicroSD and USB port. Lithium-ion rechargeable battery provides up to 4 hours of wireless play - no need to buy batteries. A USB to micro-USB cord (included) makes it easy to recharge the battery. Simply connect the USB to your computer or wall adapter. Expanded connections are line port to translate music from different source.

File formatsMP3, WMA 
USB playback
SD card playback
Tuner typedigital 
FM Radio frequency range87,5-108 mHz 
Remote control
Front speakers power8 W 
Earphone jack (3.5 mm)
USB port
SD slot
Power suply220/240 W 50/60 Hz 
Build-in battery
Detachable Lion battery
Colorred, black 
Weight, kg0.323 
Dimensions in eduplace, cm280 x 162 x 62 
Setguide, warranty card, line-in cable, power cable, remote, microphone, belt for attaching to belt