Its a very unique portable speaker designed by JBL.i bought it 1 year ago since now its working superbly.its sound quality is too good.its a wireless portable easy chargeable speaker.sound quality is very good.its easy to carry anywhere.its a very useful audio gadget.you can connect any smart phone or bluetooth device with it.its like a tiny box but such a great sound.on the top speaker features the power, bluetooth, volume up and down and micro usb port with a small unique data cable.