Get a party started with the blue Memorex FlexBeats Partybox portable stereo. Bluetooth capabilities and a rechargeable Lithium battery let you stream songs for up to four hours from any compatible media device. The FlexBeats Partybox features an SD card slot, a 3.5mm audio jack and a USB port for easy MP3 playback.
First the radio is very sensitive. It really pulls in the stations. Fm only. The blue tooth works very well. I get about a 40 foot range from my I phone before it breaks up. I have not tested the USB or memory card players yet. It's very lightweight. I get about 10 hours on a charge using blue tooth. It's not super loud but it does the job. With the bass and treble up all the way it will start to distort when loud but just turn the bass down. Considering the price it's a good value. Just don't compare it to some of those larger blue tooth players out there.