... exquisite4.Wooden enclosure wholly made by hand, high intensity, effectively eliminate resonance and cabinet noise5. With Standby,Input,Menu,VOL+,VOL- keys ... -Noise ≥70dB Driver units Sub-5.25inch*1, Sat-3inch*4, Magnetically shielded Carton box size 386*237*463mm G.W ... 6.0KG 20FT660 sets 40FT1380sets 40HQ1632 sets Hot 4.1 amplifier speaker with USB/SD/FM function and VFD display