I have one of these, Yes it's wireless. The audio plug on back is for devices that don't have Bluetooth. That dude up top is a complete idiot. Do your research First. Out of trying many different other speakers this one has the best sound with the best sounding bass out of almost all speakers out to date. I just wanna second one for the piggyback feature. Also if you use the audio cable you actually get a much louder music experience. Seeing as you can turn both your device and the speaker up separately. The only speakers that have this one beat are the flip and the charge. Both made to be this speakers bigger brothers made by the same company. Great auction. F&W