Yamaha PDX-31, 2.0 saluran, 30 W, iPhone, iPod, Kelabu, Digital, 1,7 kg Yamaha PDX-31. Saluran output audio: 2.0 saluran, Kuasa terkadar RMS: 30 W. Keserasian dok Apple: iPhone, iPod. Product color: Kelabu, Kawalan kelantangan: Digital. Berat: 1,7 kg. Dimensi (LxDxT): 350 x 125 x 109 mm