1206 Single magnetic steel Frequency Response110±3dB 179mVrms/at 1KHzRated power20 mWMax power30 mWImpedance32±15% ohmResonance Frequency400±100 HzSize(L*W*H)12*6*2 More 1506 Single magnetic steel Frequency Response111±3dB 179mVrms/at 1KHzRated power20 mWMax power30 mWImpedance32±15% ohmResonance Frequency350±100 HzSize(L*W*H)15*6*2 More 0908 Three magnetic steel Frequency Response110±3dB 179mVrms/at 1KHzRated power20 mWMax power30 mWImpedance32±15% ohmResonance Frequency400±100 HzSize(L*W*H)9*8*2 More 1007 Single magnetic steel Frequency Response110±3dB 179mVrms/at 1KHzRated power20 mWMax power30 mWImpedance32±15% ohmResonance Frequency350±100 HzSize(L*W*H)10*7*2.1 More