mini speaker,wireless speaker 1,DC 12V 2.AC power 3.RMS ... 4S Mini speaker, plastic speaker, mp3 speaker, wireless speaker,USB speaker1.Recharge: USB charging, USB download charging, independent charging.2.compatible with CD ... *225*116mmCarton size:595*375*470mm 20pcsN.W:17.6kg G.W.:18.43kgWe got the FCC, CE, ROHS and ... best only better, so our products are more competitive wireless speaker for iphone 4s