... setPacking Size:Inner carton: 370(L)*310(W)*330(H) mmMaster carton: 640(L)*385(W)*682(H) mm4 sets in one ... : Speaker, mini speaker, portable speaker, USB speaker, computer speaker, car speaker, speaker box2.We can add USB/SD function and FM function on multimedia speaker,mp3 speaker, speaker system, speaker part, speaker cable, professional speaker ...